Difference between revisions of "SceIofilemgr"

Latest revision as of 13:51, 13 November 2023

SceIofilemgr is the primary interface for file IO. Read File Management for more information on file IO.

Module

This module exists only in non-secure world. The SELF can be found in os0:kd/iofilemgr.skprx.

Version	World	Privilege
0.990-3.60	Non-secure	Kernel

Libraries

Known NIDs

Version	Name	World	Visibility	NID
1.69-3.60	SceIofilemgrForDriver	Non-secure	Kernel	0x40FD29C7
1.69-3.60	SceIofilemgr	Non-secure	User	0xF2FF276E

Debug callback type

Type	When
0x0	Scheduled sceIoOpen start
0x1	Scheduled sceIoOpen end
0x2	sceVopOpen start
0x3	sceVopOpen end
0x4	Scheduled sceIoClose start
0x5	Scheduled sceIoClose end
0x6	sceVopClose start
0x7	sceVopClose end
0x8	Scheduled sceIoRead start
0x9	Scheduled sceIoRead end
0xA	sceVopRead start
0xB	sceVopRead end
0xC	Scheduled sceIoWrite start
0xD	Scheduled sceIoWrite end
0xE	sceVopWrite start
0xF	sceVopWrite end
0x10	Scheduled sceIoPread start
0x11	Scheduled sceIoPread end
0x12	sceVopPread start
0x13	sceVopPread end
0x14	Scheduled sceIoPwrite start
0x15	Scheduled sceIoPwrite end
0x16	sceVopPwrite start
0x17	sceVopPwrite end
0x18	Scheduled sceIoLseek start
0x19	Scheduled sceIoLseek end
0x1A	sceVopLseek start
0x1B	sceVopLseek end
0x1C	Scheduled sceIoMkdir start
0x1D	Scheduled sceIoMkdir end
0x1E	sceVopMkdir start
0x1F	sceVopMkdir end
0x20	Scheduled sceIoRmdir start
0x21	Scheduled sceIoRmdir end
0x22	sceVopRmdir start
0x23	sceVopRmdir end
0x24	Scheduled sceIoGetstat start
0x25	Scheduled sceIoGetstat end
0x26	sceVopGetstat start
0x27	sceVopGetstat end
0x28	Scheduled sceIoRemove start
0x29	Scheduled sceIoRemove end
0x2A	sceVopRemove start
0x2B	sceVopRemove end
0x2C	Scheduled sceIoRename start
0x2D	Scheduled sceIoRename end
0x2E	sceVopRename start
0x2F	sceVopRename end
0x30	-
0x31	-
0x32	Scheduled sceIoDopen start
0x33	Scheduled sceIoDopen end
0x34	sceVopDopen start
0x35	sceVopDopen end
0x36	Scheduled sceIoDread start
0x37	Scheduled sceIoDread end
0x38	sceVopDread start
0x39	sceVopDread end
0x3A	Scheduled sceIoDclose start
0x3B	Scheduled sceIoDclose end
0x3C	sceVopDclose start
0x3D	sceVopDclose end
0x3E	Scheduled sceIoChstat start
0x3F	Scheduled sceIoChstat end
0x40	sceVopChstat start
0x41	sceVopChstat end
0x42	Scheduled sceIoIoctl start
0x43	Scheduled sceIoIoctl end
0x44	sceVopIoctl start
0x45	sceVopIoctl end
0x46	Scheduled sceIoSync start
0x47	Scheduled sceIoSync end
0x48	sceVopSync start
0x49	sceVopSync end
0x4A	Scheduled sceIoFgetstat start
0x4B	Scheduled sceIoFgetstat end
0x4C	sceVopFgetstat start/end
0x4D	-
0x4E	Scheduled sceIoFchstat start
0x4F	Scheduled sceIoFchstat end
0x50	sceVopFchstat start
0x51	sceVopFchstat end
0x52	sceVopLookup start
0x53	sceVopLookup end
0x54	sceVopCreate start
0x55	sceVopCreate end
0x56	sceVopInactive start
0x57	sceVopInactive end
0x58	sceVopWhiteout start
0x59	-
0x5A	sceVopWhiteout end
0x5B	sceVopCleanup start
0x5C	sceVopCleanup end
0x5D	sceVfsOpMount start
0x5E	sceVfsOpMount end
0x5F	sceVfsOpUnmount start
0x60	sceVfsOpUnmount end
0x61	sceVfsOpDevctl start
0x62	sceVfsOpDevctl end
0x63	sceVfsOpSync start
0x64	sceVfsOpSync end
0x65	sceVfsOpDecodePathElem start
0x66	sceVfsOpDecodePathElem end

Mount Points

This table is stored in data segment of SceIofilemgr as array of vfs_mount_point_info elements.

When #sceVfsMountForDriver is executed, it finds vfs_add_data element by filesystem string and then selects appropriate mount scenario by devMinor and devMajor.

<rnd> means random numeric string of length 13

See SceSdstor for "sdstor0:" Block Device.

Unix Mount	Dev Major	Dev Minor	fsName	assignName	blockdevName	VSH Mount Id	Comment
/PD<rnd>	0x3	0x1001	PFS_GDSD_INF	PD<rnd>0	-	0x0	-
/sd/exfat	0x2030001	0x30002	exfat	sd0:	sdstor0:ext-lp-act-entire	0x100	-
/os/exfat	0x1000001	0x1002	exfat	os0:	sdstor0:int-lp-act-os	0x200	Formatted as FAT16.
/vs/exfat	0x1000001	0x1002	exfat	vs0:	sdstor0:int-lp-ign-vsh	0x300	Formatted as FAT16.
/vd/exfat	0x1000001	0x10002	exfat	vd0:	sdstor0:int-lp-ign-vshdata	0x400	Formatted as FAT16.
/tm/exfat	0x1000001	0x10002	exfat	tm0:	sdstor0:int-lp-ign-vtrm	0x500	Formatted as FAT16.
/ur/exfat	0x1000001	0x50002	exfat	ur0:	sdstor0:int-lp-ign-user	0x600	Formatted as exFAT.
/ud/exfat	0x1000001	0x10002	exfat	ud0:	sdstor0:int-lp-ign-updater	0x700	Formatted as FAT16.
/ux/exfat	0x2020001	0x30002	exfat	ux0:	External: sdstor0:xmc-lp-ign-userext Internal: sdstor0:int-lp-ign-userext	0x800	Formatted as exFAT.
/gro/exfat	0x2010001	0x21002	exfat	gro0:	sdstor0:gcd-lp-ign-gamero	0x900	Formatted as exFAT.
/grw/exfat	0x2010001	0x20002	exfat	grw0:	sdstor0:gcd-lp-ign-gamerw	0xA00	Formatted as exFAT.
/sa/exfat	0x1000001	0x1002	exfat	sa0:	sdstor0:int-lp-ign-sysdata	0xB00	Formatted as FAT16.
/pd/exfat	0x1000001	0x1002	exfat	pd0:	sdstor0:int-lp-ign-pidata	0xC00	Formatted as exFAT.
/imc/exfat	0x2020001	0x30002	exfat	imc0:	sdstor0:int-lp-ign-userext	0xD00	Formatted as exFAT.
/xmc/exfat	0x2020001	0x30002	exfat	xmc0:	sdstor0:xmc-lp-ign-userext	0xE00	Formatted as exFAT.
/uma/exfat	0x2030001	0x2	exfat	uma0:	sdstor0:uma-lp-act-entire	0xF00	-
/tty	0x4000020	0x6003	dummy_ttyp_dev_fs	tty	dummy_ttyp_dev_fs	0x0	-
/dev	0x10	0x3	sdstor_dev_fs	sdstor0:	sd	0x1	-
/md	0x10	0x2003	md_dev_fs	md0:	md	0x2	-
/lma/exfat	0x1	0x5	exfat	lma0:	/	0x10000	-
/lmb/exfat	0x1	0x5	exfat	lmb0:	/	0x20000	-
/mfa/exfat	0x1	0x5	exfat	mfa0:	/	0x50000	-
/mfb/exfat	0x1	0x5	exfat	mfb0:	/	0x60000	-
/host	0x3000004	0x8006	-	host0:	deci4p_drfp_dev_fs	-	-

Dev Minor

Mask	Value	Comment
0xFF	-	type
0xFF00	-	flags
0xFF00	0x1000	Read Only
0xFF0000	0x10000	Invalidate fd on susppend/resume within process/system
0xFF0000	0x20000	External media

VFS Implementation

Information can be found on separate page VFS Implementation

Note

Max vfs node number is 0x1000.

Types

typedef struct SceIoMount { // size is 0x34-bytes
	void *mnt;
	int mntId;
	char assignName[0x20];
	SceUInt32 openedEntryNum;
	SceBool unk_0x2C;
	int unk_0x30;
} SceIoMount;

typedef struct SceIoMountInfo { // size is 0x54C-bytes
	void *mnt;
	int mntId;
	char assignName[0x20];
	SceUInt32 openedEntryNum;
	int unk_0x2C;
	int unk_0x30;
	int unk_0x34;
	int unk_0x38;
	int unk_0x3C;
	int unk_0x40;
	int unk_0x44;
	int unk_0x48;
	int unk_0x4C;
	int unk_0x50;
	int unk_0x54;
	int unk_0x58;
	int unk_0x5C;
	int unk_0x60;
	int unk_0x64;
	int unk_0x68;
	int unk_0x6C;
	int unk_0x70;
	int unk_0x74;
	int unk_0x78;
	int unk_0x7C;
	int unk_0x80;
	int unk_0x84;
	char unk_0x88[0x400];
	int unk_0x488;
	char unk_0x48C[0x40];
	char blockdevName[0x40];
	char unk_0x50C[0x40];
} SceIoMountInfo;

typedef struct vfs_node_info { // size is 0x38
   char name[0x20];
   vfs_node* node; // can be zero
   uint32_t unk_24; // probably size of vfs_node
   uint32_t unk_28; // probably flags
   vfs_node_info* node_info_2C; // can be zero
   vfs_node_info* node_info_30; // can be zero
   vfs_node_info* node_info_34; // can be zero
} vfs_node_info;

// It looks like this structure is used to get some response into "error" field
// when executing sceKernelSignalCondTo calls.
// This structure is used by SceIofileDaemon when it monitors mount/unmount async requests
// in SceIofilemgrMount thread using SceIofilemgrMount conditional variable.
// Upon completion it issues the signal and result of operation is stored in error field.
// It looks like operations 1/2 are used for normal filesystems.
// Operations 3/4 are used for PFS_GDSD_INF filesystem.
typedef struct cond_ctx {
   uint32_t op_index; // operation index. 1,3 - mount. 2,4 - unmount
   uint32_t unk_4;
   uint32_t unk_8;
   uint32_t unk_C;
   uint32_t unk_10;
   uint32_t unk_14;
   uint32_t unk_18;
   uint32_t unk_1C;
   int error; // either error code or 0
   cond_ctx* next; // 0 means end of list
} cond_ctx;

typedef struct ctx_19D4 {
   void* unk_0; 
   uint32_t unk_4;
   vfs_node* offset; // Pool of vfs_nodes with 0x1000 elements.
                     // It is used in sceVfsGetNewVnodeForDriver, mount/unmount and node find routines.
   uint32_t size;

   uint32_t count;
   uint32_t unk_14;
   uint32_t unk_18;
   uint32_t unk_1C;
} ctx_19D4;

typedef struct ctx_11C { //size is 0x220
   void* unk_0; 
   uint32_t unk_4;
   void* offset; // pointer to array of byte size 0x10000 with 0x40 elements of size 0x400
   uint32_t size;

   uint32_t count;

   uint8_t data[0x20C];
} ctx_11C;

typedef struct io_scheduler_dispatcher { //size is 0xB8
   char unk_0[0x50];

   io_scheduler* unk_50; // Internal storage
   io_scheduler* unk_54; // Gamecard
   io_scheduler* unk_58; // Removable media (memory card)
   io_scheduler* unk_5C; // Host File System (host0:)
   io_scheduler* unk_60; // Default
   
   uint32_t unk_64; // pointer to unknown module data section
   uint32_t unk_68; // SceIoSchedulerDispatcher fast mutex
   uint32_t unk_6C;
   
   char unk_70[0x30];
   
   uint32_t unk_A0;
   uint32_t unk_A4;
   
   SceUID unk_A8; // SceIoSchedulerDispatcher event flag uid
   uint32_t unk_AC; // counter
   uint32_t unk_B0; // flag
   uint32_t unk_B4; // 0
   
} io_scheduler_dispatcher;

typedef struct io_scheduler_item { // size is 0x14 - allocated from SceIoScheduler heap
   io_scheduler* unk_0; // parent
   uint32_t unk_4; // 0
   uint32_t unk_8; // 0
   uint32_t unk_C; // 0
   uint32_t unk_10; // pointer to unknown module data section
} io_scheduler_item;

enum io_device_code {
  Internal = 0x100,
  Game_Card = 0x201,
  Removable = 0x202,
  Host_File_System = 0x300,
  Default = 0x0
};

typedef struct io_scheduler { //size is 0xA8 - allocated from SceIoScheduler heap
   io_device_code unk_0; 
   io_scheduler_item* unk_4; // item 0
   io_scheduler_item* unk_8; // item 1
   io_scheduler_item* unk_C; // item 2
   
   io_scheduler_item* unk_10; // item 3
   io_scheduler_item* unk_14; // item 4
   io_scheduler_item* unk_18; // item 5
   io_scheduler_item* unk_1C; // item 6
   
   io_scheduler_item* unk_20; // item 7
   io_scheduler_item* unk_24; // item 8
   io_scheduler_item* unk_28; // item 9
   io_scheduler_item* unk_2C; // item 10
   
   io_scheduler_item* unk_30; // item 11
   io_scheduler_item* unk_34; // item 12
   io_scheduler_item* unk_38; // item 13
   io_scheduler_item* unk_3C; // item 14
   io_scheduler_item* unk_40; // item 15
   
   uint32_t unk_44; // flag1 0x40000 or 0x00
   uint32_t unk_48; // flag2 0x40000 or 0x00
   io_scheduler_dispatcher* unk_4C; // parent
   
   SceUID unk_50; // SceIoScheduler mutex
   SceUID unk_54; // SceIoScheduler cond
   
   char unk_58; // 0
   char unk_59; // 0
   char unk_5A; // 0
   char unk_5B; // 0
   
   uint32_t unk_5C; // 0
   
   // this is probably a separate structure
   SceUID unk_60; // SceIoSchedWorker thread id
   SceUID unk_64; // SceIoScheduler mutex from self
   SceUID unk_68; // SceIoScheduler cond from self
   io_scheduler* unk_6C; // pointer to self
   
   uint32_t unk_70; // 0
   uint16_t unk_74; // 0
   uint16_t unk_76; // 0
   uint32_t unk_78; // 0
   uint32_t unk_7C; // 0
   
   uint32_t unk_80; //
   uint32_t unk_84; // some flag
   
   uint32_t unk_88; //0x80
   uint32_t unk_8C; //0x80
   
   uint32_t unk_90; //0x80
   uint32_t unk_94; //0x80
   uint32_t unk_98; //0x80
   uint32_t unk_9C; //0x80
   
   uint32_t unk_A0; // 0
   uint32_t unk_A4; // 0

} io_scheduler;

// Context used for dispatching i/o operations
typedef struct io_context { // size is 0xB8 on FW 3.60
   uint32_t unk_0;
   uint32_t unk_4;
   uint32_t unk_8;
   uint32_t unk_C;
   
   uint16_t unk_10;
   uint16_t unk_12;
   uint16_t unk_14;
   uint16_t unk_16;
   void *data_0; // 0x18
   uint32_t unk_1C; // 0x1C
   
   SceSize size_0; // 0x20
   uint32_t io_op_index; // 0x24
   uint32_t ioctlOutdata0; // 0x28
   io_device_code device_code; // 0x2C, ioctlOutdata1
   
   char async; // 0x30
   char unk_31;
   char unk_32;
   char unk_33;
   SceUID pid; // 0x34, sceKernelGetProcessIdForDriver
   SceUID threadId; // 0x38, sceKernelGetThreadIdForDriver
   SceUID tlsPid; // 0x3C, sceKernelGetProcessIdFromTLSForDriver
   
   uint32_t unk_40; // 0x40, SceThreadmgrForDriver_332E127C
   uint32_t cpuMask; // 0x44, sceKernelGetThreadCpuAffinityMaskForDriver
   uint32_t threadPriority; // 0x48, sceKernelGetThreadCurrentPriorityForDriver
   void* list0; // 0x4C, pointer to some linked list with elements of size 0x14
   
   uint32_t listSize; // 0x50, number of items in linst
   void* list1; // 0x54, pointer to some linked list with elements of size 0x14 
   uint32_t sizeOfList; // 0x58, size of list in bytes
   uint16_t state; // 0x5C, bit 16 of state where state = (MRC p15, 0, state, c13, c0, 3)
   uint16_t unk_5E; // 0x5E
   
   uint32_t unk_60; // 0x60
   SceUID fd; // 0x64
   void *data_1; // 0x68
   uint32_t unk_6C;
   
   SceSize size_1; // 0x70
   uint32_t unk_74; // 0x74
   uint32_t unk_78; // 0x78, -1
   uint32_t unk_7C; // 0x7C, -1
   
   uint32_t op_result; // 0x80, result of i/o operation
   uint32_t unk_84;
   void* unk_88;
   uint32_t unk_8C;
   
   uint32_t unk_90;
   uint32_t unk_94;
   uint32_t unk_98;
   uint32_t unk_9C;
   
   uint32_t unk_A0;
   uint32_t unk_A4;
   uint32_t unk_A8;
   uint32_t unk_AC;
   
   SceUInt64 sytemTimeWide; // 0xB0, sceKernelGetSystemTimeWideForDriver
} io_context;

typedef struct _SceVfsFileObject_0995 { //SceVfsFileClass object - size is 0x40 on 0.995
  /* SceKernelObject header not included in size nor structure */
  SceInt32 unk_0x0;
  SceInt32 unk_0x4;
  SceInt64 unk_0x8;
  SceInt32 unk_0x10; //Set to 1 during sceVfsAllocateFile
  ScePID creator_pid; //Result of sceKernelGetProcessIdFromTLS() during sceVfsAllocateFile
  void* unk_0x18; //Pointer provided as a1 to sceVfsAllocateFile
  SceUIDVfsFileObject* next; //Pointer to next file in linked list - list head is in a1
  SceInt32 unk_0x20;
  SceInt16 unk_0x24;
  char unk_0x26; //unused?
  SceInt8 unk_0x27;
  SceInt32 unk_0x28; //comes from a1->0x4C->0xC8
  SceInt32 unk_0x2C; //((a1->0x4C->0x50 & 0x20000) << 1) | (a1->0x4C->0x50 & 0x10000)
  SceInt32 unk_0x30;
  char unk_0x34; //unused?
  SceInt8 unk_0x35;
  SceInt8 unk_0x36;
  SceInt8 unk_0x37;
  SceInt8 unk_0x38;
  SceInt8 unk_0x39;
  SceInt8 unk_0x3A;
  SceInt8 unk_0x3B;
  SceInt8 unk_0x3C;
  SceInt8 unk_0x3D;
  SceInt8 unk_0x3E;
  SceInt8 unk_0x3F;
} SceUIDVfsFileObject_0995;

typedef struct _SceUIDVfsFileObject { //SceUIDVfsFileClass object - size is 0x48 on 3.60
  /* SceKernelObject header not included in size nor structure */
  SceInt32 unk_0x0;
  SceInt32 unk_0x4;
  SceInt64 unk_0x8;
  SceInt32 unk_0x10; //Set to 1 during sceVfsAllocateFile
  ScePID creator_pid; //Result of sceKernelGetProcessIdFromTLS() during sceVfsAllocateFile
  void* unk_0x18; //Pointer provided as a1 to sceVfsAllocateFile
  SceUIDVfsFileObject* next; //Pointer to next file in linked list - list head is in a1
  SceInt32 unk_0x20; //Zero'ed in constructor
  SceInt16 unk_0x24;
  char unk_0x26; //unused?
  SceInt8 unk_0x27;
  SceInt32 unk_0x28; //comes from a1->0x4C->0xC8
  SceInt32 unk_0x2C; //((a1->0x4C->0x50 & 0x20000) << 1) | (a1->0x4C->0x50 & 0x10000)
  SceInt32 unk_0x30;
  char unk_0x34; //unused?
  SceInt8 unk_0x35;
  SceInt8 unk_0x36;
  SceInt8 unk_0x37;
  SceInt8 unk_0x38; //Zero'ed during constructor
  SceInt8 unk_0x39; //^ doing *(SceInt32*)(&file->unk_0x38) = 0;
  SceInt8 unk_0x3A; //^
  SceInt8 unk_0x3B; //^
  SceInt8 unk_0x3C;
  SceInt8 unk_0x3D;
  SceInt8 unk_0x3E;
  SceInt8 unk_0x3F;
  char unk_0x40[8]; //unknown type - haven't seen this used yet
} SceUIDVfsFileObject;

typedef struct SceVfsPath { //size is 0xC-bytes
	char *name; // could be `const char *`?
	SceSize name_len;
	char *path; // could be `const char *`?
} SceVfsPath;

Data segment layout

Address	Size	Description
0x0000	0x4	unknown
0x0004	0x8	some index returned from initialization function 0xb645c7ef in SceThreadmgrForDriver
0x0008	0x4	unknown
0x000C	0x4	flag that enables usage of sceFiosKernel functions (like OverlayResolveSync) in i/o operations in transition from user to kernel
0x00010	0x4	flag that enables usage of sceFiosKernel functions (like OverlayResolveSync) in i/o operations in transition from user to kernel
0x00014	0x4	flag that enables usage of sceFiosKernel functions (like OverlayResolveSync) in i/o operations in transition from user to kernel
0x00018	0x4	flag that enables usage of sceFiosKernel functions (like OverlayResolveSync) in i/o operations in transition from user to kernel
0x0001C	0x4	unknown
0x0020	0x4	`SceIofileDevWaitForVC` event flag SceUID
0x0024	0x4	unknown
0x0028	0x4	`SceIofileDevWaitForSD` event flag SceUID
0x002C	0x4	pointed by `vfs_mount_cc` for `SceIofileDevWaitForSD`
0x0030	0x4	`SceIofileDevWaitForMC` event flag SceUID
0x0034	0x4	unknown
0x0038	0x4	pointed by `vfs_mount_cc` for `SceIofileDevWaitForVC`
0x003C	0x4	pointed by `vfs_mount_cc` for `SceIofileDevWaitForMC`
0x0040	0x10	unknown
0x0050	0x4	address of some callback function called in all vfs operations
0x0054	0x4	`SceIofile` heap SceUID
0x0058	0x80	unknown
0x00D8	0x4	`SceIoVfsHeap` heap SceUID
0x00DC	0x4	`SceIoFileDebug` memblock SceUID
0x00E0	0x3C	unknown
0x011C	0x4	ctx_11C* pointer to structure
0x0120	0x4C	unknown
0x016C	0x10	char* static_buffers[4] - static buffers used instead of SceIoVfsHeap
0x017C	0x2C	`SceClass` for SceVfsFile
0x01A8	0x1500	array of 96 elements of vfs_node_info
0x16A8	0x4	`SceVfsRfsLock` fast mutex
0x16AC	0x3C	unknown
0x16E8	0x2C	`SceClass` for SceIoMountEvent
0x1714	0xC	unknown
0x1720	0x04	cond_ctx* pointer to the linked list
0x1724	0x4	`SceIoScheduler` heap SceUID
0x1728	0xB8	`io_scheduler_dispatcher` structure
0x17E0	0x2C	`SceClass` for SceIoAsyncEvent - used in all async i/o operations
0x180C	0xC	unknown
0x1818	0x2C	`SceClass` for SceIoErrorEvent
0x1844	0xC	unknown
0x1850	0x4	`SceIofileDaemonLock` fast mutex
0x1854	0x40	unknown
0x1894	0x4	`SceIofile` fast mutex
0x1898	0x7C	unknown
0x1914	0x4	function pointer t_1914_callback
0x1918	0x4	`SceIofileFlock` fast mutex
0x191C	0x44	unknown
0x1960	0x4	some i/o flag
0x1964	0x4	flag that indicates that any i/o operation happened 1/0. changed by each i/o operation. cleared on suspend.
0x1968	0x18	unknown
0x1980	0x4	counter of not finished i/o operations. changed by each i/o operation.
0x1984	0xC	unknown
0x1990	0x4	`SceVfsMntlistLock` fast mutex
0x1994	0x3C	unknown
0x19D0	0x4	vfs_mount* singly linked list
0x19D4	0x1C	structure ctx_19D4
0x19F0	0x8	unknown
0x19F8	0x4	address used for sceKernelCpuLockSuspendIntrStoreLRForDriver to lock 016C
0x19FC	0x4	vfs_mount* pointer
0x1A00	0x4	`SceVfsNcacheLock` fast mutex
0x1A04	0x40	unknown
0x1A44	0x4	address used for sceKernelCpuLockSuspendIntrStoreLRForDriver
0x1A48	0x4	unknown
0x1A4C	0x4	`SceVfsLock` fast mutex
0x1A50	0x3C	unknown
0x1A8C	0x04	`SceIofilemgrMount` thread SceUID
0x1A90	0x700	array of 32 elements of vfs_mount_point_info
0x2190	0x4	`SceIofilemgrMount` cond SceUID
0x2194	0x4	`SceIofilemgrMount` SceUID mutexid
0x2198	0x4	flag that indicates that IoSchedulerDispatcher functionality is initialized 1/0
0x219C	0x4	unknown
0x21A0	0x40	unknown
0x21E0	0x20	unknown
0x2200	0x04	`SceIofilemgrDaemon` thread SceUID
0x2204	0x8	unknown
0x220C	0x4	`SceIofilemgrDaemon` event flag SceUID
0x2210	0x4	void* to heap alloc of size 0x100
0x2214	0x4	void* to heap alloc of size 0x100
0x2218	0x4	= 3
0x221C	0x20	vfs_add_data `dummy_ttyp_dev_fs` node

SceIofilemgrForDriver

sceVfsOpDevctlForDriver

Version	NID
0.990-3.60	0xB07B307D

sceVfsOpDecodePathElemForDriver

Version	NID
0.990-3.60	0xF7DAC0F5

sceVopOpenForDriver

Version	NID
0.990-3.60	0x76B79BEC

sceVopCreateForDriver

Version	NID
0.990-3.60	0x9E347C7D

sceVopCloseForDriver

Version	NID
0.990-3.60	0x40944C2E

In logs it is sceVopClsoe.

sceVopLookupForDriver

Version	NID
0.931-3.60	0xA5A6A55C

Temp name was sceVfsNodeInitializePartitionForDriver.

int sceVopLookupForDriver(SceVfsNode *pNode, SceVfsNode **ppNewNode, SceVfsPath *path_info, SceUInt32 flags);

sceVopReadForDriver

Version	NID
0.990-3.60	0x570388A5

sceVopWriteForDriver

Version	NID
0.990-3.60	0x9A68378D

sceVopLseekForDriver

Version	NID
0.990-3.60	0xB2B13818

sceVopIoctlForDriver

Version	NID
0.990-3.60	0x333C904D

sceVopRemoveForDriver

Version	NID
3.60	0xDC1E7EE4

sceVopMkdirForDriver

Version	NID
0.990-3.60	0x2F3F8C70

sceVopRmdirForDriver

Version	NID
0.990-3.60	0x1D551105

sceVopDopenForDriver

Version	NID
0.990-3.60	0x00C9C2DD

sceVopDcloseForDriver

Version	NID
0.990-3.60	0x1350F5C7

sceVopDreadForDriver

Version	NID
0.990-3.60	0x77584C8F

sceVopGetstatForDriver

Version	NID
0.990-3.60	0x50A63ACF

sceVopChstatForDriver

Version	NID
0.990-3.60	0x1974FA92

sceVopRenameForDriver

Version	NID
0.990-3.60	0x36A794C7

sceVopPreadForDriver

Version	NID
0.990-3.60	0xABBC80E3

sceVopPwriteForDriver

Version	NID
0.990-3.60	0xA53C040D

sceVopInactiveForDriver

Version	NID
0.990-3.60	0x8FB94521

sceVopLinkForDriver

Version	NID
3.60	0x942AA61F

Temp name was sceVop_unk_offset_0x54_ForDriver.

sceVopUnlinkForDriver

Version	NID
3.60	0x0D8A806E

Temp name was sceVop_unk_offset_0x58_ForDriver.

sceVopSyncForDriver

Version	NID
0.990-3.60	0x9CD96406

sceVopFgetstatForDriver

Version	NID
3.60	0x1DBCBB01

Temp name was sceVopGetStateByFdForDriver.

int sceVopFgetstatForDriver(SceVfsNode *pNode, SceVfsFileObject *pVfsFileObject, SceIoStat *stat);

sceVopFchstatForDriver

Version	NID
3.60	0x082AFD7F

Temp name was sceVopChstatByFdForDriver.

int sceVopFchstatForDriver(SceVfsNode *pNode, SceVfsFileObject *pObject, SceIoStat *stat, int bit);

sceVopWhiteoutForDriver

Version	NID
0.996-3.60	0xF53399BC

Temp name was sceVopTrashForDriver.

Move target node entry file/directory to xx0:/SceIoTrash/.

sceVopCleanupForDriver

Version	NID
3.60	0x0F7E1718

Temp name was sceVop_unk_offset_0x6C_ForDriver.

sceVopZerofillForDriver

Version	NID
0.996-3.60	0xEEAE8B51

Temp name was sceVop_unk_offset_0x70_ForDriver.

vfsIsLockedMntForDriver

Version	NID
3.60	0xC468B5EF

some thread op

vfsBuffCacheCtlForDriver

Version	NID
3.60	0xA7020B0D

big function

int vfsBuffCacheCtlForDriver(SceVfsNode *vp, int a2, int a3, int a4, int cache_size);

vfsBuffCacheFreeForDriver

Version	NID
3.60	0xD6AB5E4B

some node op

vfsLockVnodeForDriver

Version	NID
0.995-3.60	0xAA45010B

Temp name was sceVfsNodeWaitEventFlagForDriver, sceVfsLockVnodeForDriver.

calls sceKernelWaitEventFlagForDriver using event_flag_SceVfsVnode from vfs_node

1. If the ownerId of the locked vnode is -1 (no anyone), set own thread as owner and leave the function.

2. If the ownerId is already mine, increment recursiveCount and leave the function.

3. If we get here we increment waiter.

4. Just to be sure, we do a check for 1 again and if the ownerId is -1, we set the ownerId to ourselves in the thread, then decrement waiter and leave the function.

5. If you've come this far, wait for the other owner to unlock the vnode with sceKernelWaitEventFlag.

6. Decrement the waiter and set the ownerId to its own thread and leave the function.

int vfsLockVnodeForDriver(vfs_node *node);

vfsUnlockVnodeForDriver

Version	NID
0.990-3.60	0x6048F245

Temp name was sceVfsNodeSetEventFlagForDriver, sceVfsUnlockVnodeForDriver.

calls sceKernelSetEventFlagForDriver using event_flag_SceVfsVnode from vfs_node

1. The function fails if the ownerId is not its own thread.

2. If recursiveCount is not 0, decrement recursiveCount and leave the function.

3. If recursiveCount is 0, checks waiter value.

4. If waiter is not 0, set ownerId to 0xfffffffd, then notify other waiting threads of unlock with sceKernelSetEventFlag and leave the function.

5. Check ownerId and waiter again and execute 4 if there is a discrepancy with the first check.

6. Set waiter to 0 and ownerId to -1 and leave the function.

int vfsUnlockVnodeForDriver(vfs_node* node);

vfsMountForDriver

Version	NID
0.990-3.60	0xB62DE9A6

This is a guessed name.

Temp name was sceVfsMountForDriver.

int vfsMountForDriver(vfs_mount_point_info_base *mnt);

vfsUmountForDriver

Version	NID
1.69-3.60	0x9C7E7B76

Temp name was sceVfsUnmountForDriver.

int vfsUmountForDriver(vfs_unmount_data *data);

sceVfsAddVfsForDriver

Version	NID
0.990-3.60	0x673D2FCD

Used by SceSdstor, SceTty2uart, SceKernelBlueScreenOfDeath.

int sceVfsAddVfsForDriver(vfs_add_data *data);

sceVfsDeleteVfsForDriver

Version	NID
1.69-3.60	0x9CBFA725

int sceVfsDeleteVfsForDriver(const char *name, void **deleted_node);

vfsMountForPFSForDriver

Version	NID
3.60	0xFEEE44A9

Temp name was scePfsMgrVfsMountForDriver.

operation index 3 in cond_ctx

// this function can be used with PFS_GDSD_INF filesystem
int vfsMountForPFSForDriver(vfs_mount_point_info_base *mnt, int unk1, int unk2);

vfsUmountForPFSForDriver

Version	NID
3.60	0xD220539D

This is a guessed name.

Temp name was scePfsMgrVfsUmountForDriver.

operation index 4 in cond_ctx

int vfsUmountForPFSForDriver(vfs_unmount_data* umnt, int unk1, int unk2);

vfsLockMntForDriver

Version	NID
3.60	0x6B3CA9F7

Temp name was sceVfsLockMntForDriver.

vfsUnlockMntForDriver

Version	NID
3.60	0xDC2D8BCE

Temp name was sceVfsUnlockMntForDriver.

vfsGetNewVnodeForDriver

Version	NID
0.990-3.60	0xD60B5C63

Temp name was sceVfsGetNewVnodeForDriver.

int vfsGetNewVnodeForDriver(vfs_mount *mnt, node_ops2 *ops, int unused, vfs_node **node);

vfsFreeVnodeForDriver

Version	NID
0.990-3.60	0x21D57633

Temp name was sceVfsFreeVnodeForDriver.

vfsIsOwnerForDriver

Version	NID
3.60	0xC3AE93A2

This is a guessed name.

Temp name was sceIoComparisonCurrentThreadIdForDriver.

SceBool vfsIsOwnerForDriver(void *vp);

vfsGetVnodeNameForDriver

Version	NID
0.990-3.60	0xAA253B68

Temp name was sceVfsGetVnodeNameForDriver.

int vfsGetVnodeNameForDriver(SceVfsNode *vp, char *name, SceSize n, SceSize *result);

vfsAllocateFileForDriver

Version	NID
0.995-3.60	0xBBAC1751

Temp name was sceVfsAllocateFileForDriver.

Creates a SceUIDVfsFileClass object and returns UID and pointer to created object.

// type of a1 is unknown for now - at least 0x98 bytes wide

// FW 0.995
SceUID vfsAllocateFileForDriver(void *vp, SceUIDVfsFileObject **ppFile);

// FW 3.60
// If name is NULL, default name (same as 0.995, "SceVfsFile") is used as object name
// Else, name will be created with snprintf("file %s %s", something_from_a1, name);
SceUID vfsAllocateFileForDriver(void *vp, SceVfsFileObject **ppFile, const char *name);

vfsAllocateFileDummyForDriver

Version	NID
3.60	0xCDF3EF52

This is a guessed name.

SceUID vfsAllocateFileDummyForDriver(int flags, SceBool is_dir, const char *name);

vfsFreeFileForDriver

Version	NID
0.990-3.60	0xC85E33A2

Temp name was sceVfsFreeFileForDriver.

Frees a file created with vfsAllocateFileForDriver.

SceInt32 vfsFreeFileForDriver(void *vp, SceUID file_uid);

vfsRmdevForDriver

Version	NID
3.60	0x69A7E076

Temp name was sceVfsRmdevForDriver.

vfsOpenForDriver

Version	NID
3.60	0x0E518FA9

Temp name was t_sceIoOpenForDriver, sceVfsOpenForDriver.

thread callback for sceIoOpenForDriver

typedef struct SceVfsOpenArgs {
  const char *filename;
  int flag;
  SceIoMode mode;
} SceVfsOpenArgs;

SceUID vfsOpenForDriver(SceVfsOpenArgs *argp);

vfsCloseForDriver

Version	NID
3.60	0x1AE14011

Temp name was t_sceIoCloseForDriver, sceVfsCloseForDriver.

thread callback for sceIoCloseForDriver

typedef struct SceVfsCloseArgs {
  SceUID fd;
} SceVfsCloseArgs;

int vfsCloseForDriver(SceVfsCloseArgs *argp);

vfsReadForDriver

Version	NID
3.60	0x809892C1

Temp name was t_sceIoReadForDriver, sceVfsReadForDriver.

thread callback for sceIoReadForDriver

typedef struct SceVfsReadArgs {
  SceUID fd;
  void *data;
  SceSize size;
} SceVfsReadArgs;

int vfsReadForDriver(SceVfsReadArgs *argp);

vfsWriteForDriver

Version	NID
3.60	0x8598ADC3

Temp name was t_sceIoWriteForDriver, sceVfsWriteForDriver.

thread callback for sceIoWriteForDriver

typedef struct SceVfsWriteArgs {
  SceUID fd;
  const void *data;
  SceSize size;
} SceVfsWriteArgs;

int vfsWriteForDriver(SceVfsWriteArgs *argp);

vfsIoctlForDriver

Version	NID
3.60	0xC1DD4317

This is a guessed name.

Temp name was t_sceIoIoctlForDriver, sceVfsIoctlForDriver.

thread callback for sceIoIoctlForDriver

typedef struct SceVfsIoctlArgs {
  SceUID fd;
  unsigned int cmd;
  void *indata;
  int inlen;
  void *outdata;
  int outlen;
} SceVfsIoctlArgs;

int vfsIoctlForDriver(SceVfsIoctlArgs *argp);

vfsChstatForDriver

Version	NID
3.60	0xBCE4865B

Temp name was t_sceIoChstatForDriver, sceVfsChstatForDriver.

thread callback for sceIoChstatForDriver

typedef struct SceVfsChstatArgs {
   const char *path;
   const SceIoStat *stat;
   unsigned int cbit;
   uint32_t store_attr;
} SceVfsChstatArgs;

int vfsChstatForDriver(SceVfsChstatArgs *argp);

vfsChstatByFdForDriver

Version	NID
3.60	0x7517FE29

Temp name was t_sceIoChstatByFdForDriver, sceVfsChstatByFdForDriver.

thread callback for sceIoChstatByFdForDriver

typedef struct SceVfsChstatByFdArgs {
  SceUID fd;
  const SceIoStat *buf,
  unsigned int cbit;
} SceVfsChstatByFdArgs;

int vfsChstatByFdForDriver(SceVfsChstatByFdArgs *args);

vfsPreadForDriver

Version	NID
3.60	0x0B54F9E0

Temp name was t_sceIoPreadForDriver, sceVfsPreadForDriver.

thread callback for sceIoPreadForDriver

typedef struct SceVfsPreadArgs {
   SceUID uid;
   void *data;
   SceSize size;
   int paddind; // unused
   SceOff offset;
} SceVfsPreadArgs;

int vfsPreadForDriver(SceVfsPreadArgs *argp);

vfsPwriteForDriver

Version	NID
3.60	0xE5DEA6B7

Temp name was t_sceIoPwriteForDriver, sceVfsPwriteForDriver.

thread callback for sceIoPwriteForDriver

typedef struct SceVfsPwriteArgs {
   SceUID uid;
   const void *data;
   SceSize size;
   int padding;
   SceOff offset;
} SceVfsPwriteArgs;

int vfsPwriteForDriver(SceVfsPwriteArgs *argp);

vfsGetMntInfoForDriver

Version	NID
3.60	0xB987450D

This is a guessed name.

Temp name was sceIoGetMountInfoForDriver.

int vfsGetMntInfoForDriver(void *mnt, SceIoMountInfo *pInfo);

vfsGetMntListForDriver

Version	NID
3.60	0xC20C621C

This is a guessed name.

Temp name was sceIoGetMountVectorForDriver.

int vfsGetMntList(SceIoMount *pMount, SceUInt32 nMount, SceUInt32 *pnMount);

sceIoMountForDriver

Version	NID
3.60	0xD070BC48

operation index 1 in cond_ctx

// intermediate function between sceAppMgrGameDataMountForDriver and sceVfsMountForDriver
int sceIoMountForDriver(int vshMountId, const char *path, int flags, int unk3, int arg_0, int arg_4);

sceIoUmountForDriver

Version	NID
3.60	0x20574100

operation index 2 in cond_ctx

// intermediate function between sceAppMgrUmountForDriver and sceVfsUnmountForDriver
int sceIoUmountForDriver(int vshMountId, int unk1, int unk2, int unk3);

sceIoRmdevForDriver

Version	NID
0.990-3.60	0xA39A9CA7

Like sceIoRemove?

The difference with sceIoRemove is that sceIoRmdev seems to remove the entry to be deleted directly without moving it to SceIoTrash.

int sceIoRmdevForDriver(const char *path, int flags, int a3, int a4);

sceIoDelDrvForDriver

Version	NID
0.931	0xD51774E3
3.60	not present

Example: "tty"

int sceIoDelDrvForDriver(const char *drv);

sceIoAddDrvForDriver

Version	NID
0.931	0x1D8AC9A7
3.60	not present

int sceIoAddDrvForDriver(const char **drv);

sceIoDreadForDriver

Version	NID
1.69-3.60	0x20CF5FC7

Call interface is same as sceIoDread.

int sceIoDreadForDriver(SceUID fd, SceIoDirent *dir);

sceIoDreadForVshbridgeForDriver

Version	NID
0.995-3.60	0x03051B02

Temp name was sceIoDreadForDriver_2. Derived from _vshIoDread.

Implementation is completely the same as sceIoDreadForDriver. The only difference is that st_attr in SceIoStat is not set.

int sceIoDreadForVshbridgeForDriver(SceUID fd, SceIoDirent *dir);

sceIoWriteForDriver

Version	NID
1.69-3.60	0x21EE91F0

Call interface is same as sceIoWrite

int sceIoWriteForDriver(SceUID fd, const void *data, SceSize size);

sceIoDopenForDriver

Version	NID
1.69-3.60	0x463B25CC

Call interface is same as sceIoDopen

SceUID sceIoDopenForDriver(const char *dirname);

sceIoLseekForDriver

Version	NID
0.931-3.60	0x62090481

Call interface is same as sceIoLseek

SceOff sceIoLseekForDriver(SceUID fd, SceOff offset, int whence);

sceIoOpenForDriver

Version	NID
0.931-3.60	0x75192972

Call interface is same as sceIoOpen.

If the process is game or non-game, the `SCE_O_NOBUF` flag will be ignored.

SceUID sceIoOpenForDriver(const char *filename, int flag, SceIoMode mode);

sceIoOpenForPidForDriver

Version	NID
3.60	0xC3D34965

This is a wrapper for sceIoOpenForDriver.

Pid is used for sceFiosKernelOverlayResolveSyncForDriver.

SceUID sceIoOpenForPidForDriver(SceUID pid, const char *filename, int flag, SceIoMode mode);

sceIoChstatForDriver

Version	NID
1.69-3.60	0x7D42B8DC

Call interface is same as sceIoChstat

int sceIoChstatForDriver(const char *name, const SceIoStat *buf, unsigned int cbit);

sceIoChstatForVshbridgeForDriver

Version	NID
0.995-3.60	0x1F98BD50

Temp name was sceIoChstatForDriver_2. Derived from _vshIoChstat.

Implementation is completely the same as sceIoChstatForDriver. The only difference is that (bits = bits & (~0x10000)) operation is not applied.

int sceIoChstatForVshbridgeForDriver(const char *name, const SceIoStat *buf, unsigned int cbit);

sceIoGetstatForDriver

Version	NID
1.69-3.60	0x75C96D25

Call interface is same as sceIoGetstat.

int sceIoGetstatForDriver(const char *name, SceIoStat *buf);

sceIoGetstatForVshbridgeForDriver

Version	NID
0.995-3.60	0xD6503624

Temp name was sceIoGetstatForDriver_2. Derived from _vshIoGetstat.

Implementation is completely the same as sceIoGetstatForDriver. The only difference is that st_attr in SceIoStat *buf is not set.

int sceIoGetstatForVshbridgeForDriver(const char *name, SceIoStat *buf);

sceIoMkdirForDriver

Version	NID
1.69-3.60	0x7F710B25

Call interface is same as sceIoMkdir

int sceIoMkdirForDriver(const char *dirname, SceIoMode mode);

sceIoReadForDriver

Version	NID
1.69-3.60	0xE17EFC03

Call interface is same as sceIoRead

int sceIoReadForDriver(SceUID fd, void *buf, SceSize nbyte);

sceIoCloseForDriver

Version	NID
1.69-3.60	0xF99DD8A3

Call interface is same as sceIoClose

int sceIoCloseForDriver(SceUID fd);

sceIoRenameForDriver

Version	NID
1.69-3.60	0xDC0C4997

Call interface is same as sceIoRename

int sceIoRenameForDriver(const char *oldname, const char *newname);

sceIoRemoveForDriver

Version	NID
1.69-3.60	0x0D7BB3E1

Call interface is same as sceIoRemove

int sceIoRemoveForDriver(const char *filename);

sceIoCancelForDriver

Version	NID
3.60	0x6D59658D

Derived from sceIoCancel

sceIoChstatAsyncForDriver

Version	NID
3.60	0x7EC442BF

Derived from _sceIoChstatAsync

sceIoChstatByFdAsyncForDriver

Version	NID
3.60	0xEC974400

Derived from sceIoChstatByFdAsync

sceIoChstatByFdForDriver

Version	NID
3.60	0xDF57A75F

Derived from _sceIoChstatByFd

int sceIoChstatByFdForDriver(SceUID fd, const SceIoStat *buf, unsigned int cbit);

sceIoCloseAsyncForDriver

Version	NID
3.60	0x11C57CC6

Derived from sceIoCloseAsync

sceIoDevctlAsyncForDriver

Version	NID
3.60	0xA9302946

Derived from _sceIoDevctlAsync

sceIoDevctlForDriver

Version	NID
0.990.000-3.740.011	0x16882FC4

cmd list

handler	cmd	function
sdstor	1	Update ctx info
sdstor	2	Format rm
sdstor	3	Set some intr flag
sdstor	4	remove
sdstor	5	insert
sdstor	6	sceSdErase
sdstor	7	sdctrl_invalidate_partition with check
sdstor	8	sdctrl_invalidate_partition
exfat	0x3001	get_drive_information
exfat	0x3004	set_fake_free
exfat	0x3005	clear_fake_free
exfat	0x3802	set_whiteout_directory
exfat	0x3803	delete_whiteout_entry
exfat	0x80000001	_get_file_size_limit

Derived from _sceIoDevctl.

This performs device-specific operations. The details of the operations are driver-dependent.

It has the same prototype as SceLibKernel#sceIoDevctl.

/*
Arguments:
devname     Specified device ("<devname><unit>:")
cmd     Command code
arg     Pointer to device-driver-dependent parameter block
arglen     Number of bytes in device-driver-dependent parameter block
bufp     Pointer to return data storage block
buflen     Size of return data storage block

Return Values:
Non-negative (N>=0) Success (driver-dependent) 
<0 Error, e.g. SCE_ERROR_ERRNO_EMFILE, SCE_ERROR_ERRNO_ENODEV, SCE_ERROR_ERRNO_EUNSUP
*/

int sceIoDevctlForDriver(
    const char *devname,
    int cmd,
    const void *arg,
    SceSize arglen,
    void *bufp,
    SceSize buflen
);

sceIoDcloseForDriver

Version	NID
3.60	0x19C81DD6

Derived from sceIoDclose

int sceIoDcloseForDriver(SceUID fd);

sceIoFlockForDriver

Version	NID
3.60	0x16336A0D

Derived from sceIoFlockForSystem

sceIoGetstatByFdAsyncForDriver

Version	NID
3.60	0x0FEE1238

Derived from sceIoGetstatByFdAsync

sceIoGetstatByFdForDriver

Version	NID
3.60	0x462F059B

Derived from _sceIoGetstatByFd

// Return: 0 on success
int sceIoGetstatByFdForDriver(SceUID fd, SceIoStat *buf);

sceIoGetstatAsyncForDriver

Version	NID
3.60	0x94A5304A

Derived from _sceIoGetstatAsync

sceIoIoctlAsyncForDriver

Version	NID
3.60	0xB761E91B

Derived from _sceIoIoctlAsync

sceIoIoctlForDriver

Version	NID
3.60	0x161CD33F

Derived from _sceIoIoctl

// Return: >=0 on success (driver-dependent)
int sceIoIoctlForDriver(SceUID fd, int cmd, const void *argp, SceSize arglen, void *bufp, SceSize buflen);

sceIoLseekAsyncForDriver

Version	NID
3.60	0x541BAABD

Derived from _sceIoLseekAsync

sceIoMkdirAsyncForDriver

Version	NID
3.60	0x27003443

Derived from _sceIoMkdirAsync

sceIoOpenAsyncForDriver

Version	NID
3.60	0x451001DE

Derived from _sceIoOpenAsync

sceIoPreadAsyncForDriver

Version	NID
3.60	0x64A46A2C

Derived from _sceIoPreadAsync

sceIoPreadForDriver

Version	NID
3.60	0x2A17515D

Derived from _sceIoPread

// Return: Number of bytes actually read
int sceIoPreadForDriver(SceUID uid, void *data, int size, SceOff offset);

sceIoPwriteAsyncForDriver

Version	NID
3.60	0x202CDDE3

Derived from _sceIoPwriteAsync

sceIoPwriteForDriver

Version	NID
3.60	0x5F1512C8

Derived from _sceIoPwrite

// Return: Number of bytes actually written
int sceIoPwriteForDriver(SceUID fd, const void *buf, SceSize nbyte, SceOff offset);

sceIoReadAsyncForDriver

Version	NID
3.60	0x69047C81

Derived from sceIoReadAsync

sceIoRemoveAsyncForDriver

Version	NID
3.60	0xF9D6507D

Derived from _sceIoRemoveAsync

sceIoRenameAsyncForDriver

Version	NID
3.60	0xAACBC47A

Derived from _sceIoRenameAsync

sceIoRmdirAsyncForDriver

Version	NID
3.60	0xF5B0B36C

Derived from _sceIoRmdirAsync

sceIoRmdirForDriver

Version	NID
3.60	0x1CC9C634

Derived from _sceIoRmdir

int sceIoRmdirForDriver(const char *dirname);

sceIoSyncByFdAsyncForDriver

Version	NID
3.60	0x041209CF

Derived from sceIoSyncByFdAsync

not_sceIoSyncByFd_maybe_SyncByFd2ForDriver

Version	NID
3.60	0x43170575

This function is not sceIoSyncByFdForDriver.

Derived from sceIoSyncByFd

int not_sceIoSyncByFd_maybe_SyncByFd2ForDriver(SceUID fd, int flag);

sceIoSyncAsyncForDriver

Version	NID
3.60	0x4F9EA8B0

Derived from _sceIoSyncAsync

sceIoSyncForDriver

Version	NID
3.60	0xDDF78594

Derived from _sceIoSync

int sceIoSyncForDriver(const char *device, unsigned int flag);

sceIoWriteAsyncForDriver

Version	NID
3.60	0xA1BD13D0

Derived from sceIoWriteAsync

sceIoGetProcessDefaultPriorityForSystemForDriver

Version	NID
0.990-3.60	0xCE397158

sceIoSetProcessDefaultPriorityForSystemForDriver

Version	NID
0.990-3.60	0xABE65071

sceIoDopenAsyncForDriver

Version	NID
3.60	0x72F06BDE

sceIoDcloseAsyncForDriver

Version	NID
3.60	0xC08F199F

sceIoDreadAsyncForDriver

Version	NID
3.60	0x5982B0E3

sceIoCreateMountEventForDriver

Version	NID
3.60	0x2DFA192F

Derived from vshIoCreateMountEvent

int sceIoCreateMountEventForDriver(int vshMountId, int flag);

sceIoCreateErrorEventForDriver

Version	NID
3.60	0x3C0343DB

Derived from vshIoCreateErrorEvent

typedef struct sceIoCreateErrorEventForDriverOpt {
  uint32_t unk_0;
  uint32_t unk_4;
  uint32_t unk_8;
  uint32_t unk_C;

  uint32_t unk_10;
  uint32_t unk_14;
  uint32_t unk_18;
} sceIoCreateErrorEventForDriverOpt;

SceUID sceIoCreateErrorEventForDriver(int vshMountId, int flag, sceIoCreateErrorEventForDriverOpt* opt);

sceIoClearErrorEventForDriver

Version	NID
3.60	0x40B933C7

Derived from vshIoClearErrorEvent

int sceIoClearErrorEventForDriver(SceUID uid);

sceIoDeleteMountEventForDriver

Version	NID
3.60	0x43DB0AE4

Derived from vshIoDeleteMountEvent

int sceIoDeleteMountEventForDriver(SceUID uid);

sceIoDeleteErrorEventForDriver

Version	NID
3.60	0xC6158F8D

Derived from vshIoDeleteErrorEvent

int sceIoDeleteErrorEventForDriver(SceUID uid);

sceIoSetMountEventForDriver

Version	NID
0.995-3.60	0x39ABDB9E

Temp name was sceIoInvokeMountEventForDriver.

/*
 * (flags & 0x100) != 0 -> mount
 * (flags & 0x200) != 0 -> unmount
 */
int sceIoSetMountEventForDriver(int vshMountId, int flags, int unk2, int unk3);

vfsUnlockMntByMntIdForDriver

Version	NID
3.60	0x5B7E5AB8

This is a guessed name.

Temp name was sceIoUmount2ForDriver.

int vfsUnlockMntByMntIdForDriver(int vshMountId);

sceIoSetPathMappingFunctionForDriver

Version	NID
3.60	0xCFAECF18

Used by SceAppMgr.

Sets a callback function that does path mapping:

function tries to OverlayResolveSync input path
checks that it is not a PD path (Pseudo Drive mount point aquired by ScePfsMgr)
takes beginning of path until symbol ":"
tries to do a lookup by that path copy in data segment global 0x3470C mount_point_data_entry item array
if item is found then path from mount_point_data_entry item is copied to result_path
in any other case OverlayResolveSync result path is copied to result_path

typedef int ( SceIoPathMappingFunc)(const char *path, SceUID pid, char *result_path, SceSize size);

int sceIoSetPathMappingFunctionForDriver(SceIoPathMappingFunc *func);

sceIoGetMediaTypeForDriver

Version	NID
0.990-3.60	0x9C220246

Was wrongly named sceIoGetPathIdExForDriver.

May also call callback function set by sceIoSetPathMappingFunctionForDriver.

This callback function does path mapping since result in result_path is passed to sceSblACMgrGetMediaTypeForKernel.

int sceIoGetMediaTypeForDriver(SceUID pid, const char *path, int ignored, int *media_type);

sceIoGetThreadDefaultPriorityForSystemForDriver

Version	NID
3.60	0x6D0FEDB6

int sceIoGetThreadDefaultPriorityForSystemForDriver(void);

sceIoSetThreadDefaultPriorityForSystemForDriver

Version	NID
3.60	0x3F0FF9D5

sceIoGetRemoteKPLSDataForDriver

Version	NID
3.60	0x44EDCE57

This is a guessed name.

int sceIoGetRemoteKPLSDataForDriver(SceUID pid, void *dst);

sceIoSetProcessFileOpenMaxNumberForDriver

Version	NID
3.60	0xAC0E9AAA

int sceIoSetProcessFileOpenMaxNumberForDriver(SceUID pid, SceSize number);

sceIoSetProcessDirOpenMaxLevelForDriver

Version	NID
3.60	0x03F6A684

int sceIoSetProcessDirOpenMaxLevelForDriver(SceUID pid, SceSize level);

sceIoCompleteForDriver

Version	NID
3.60	0x8F0DE34D

int sceIoCompleteForDriver(SceUID fd);

sceIoGetPriorityForSystemForDriver

Version	NID
3.60	0x9FCDCE62

int sceIoGetPriorityForSystemForDriver(SceUID a1);

sceIoSetPriorityForSystemForDriver

Version	NID
3.60	0xCCE94599

int sceIoSetPriorityForSystemForDriver(SceUID a1, int a2);

sceIoSetErrorEventForDriver

Version	NID
0.995-3.60	0xDD46CD63

Previously (wrongfully) called sceIoGetGUIDErrorEventListForDriver.

sceIoSetDebuggerCallbackForDriver

Version	NID
3.60	0xF4F8C59A

sceIoGetGUIDFdListForDebuggerForDriver

Version	NID
3.60	0xdcf75f6d

sceIoGetPUIDFdListForDebuggerForDriver

Version	NID
3.60	0xd493274

sceIoGetFileInfoForDriver

Version	NID
3.60	0xa1ef2648

This is a guessed name.

SceIofilemgrForDriver_12F8D58E

Version	NID
3.60	0x12F8D58E

get some value

SceIofilemgrForDriver_15C17487

Version	NID
0.996.090-3.740.011	0x15C17487

A possible name is sceIoSchedulerIssueAnotherIoRequestForDriver.

int SceIofilemgrForDriver_15C17487(int io_device_code);

SceIofilemgrForDriver_2EFDFA12

Version	NID
3.60	0x2EFDFA12

set path by flags?

int SceIofilemgrForDriver_2EFDFA12(SceUID fd, char *path);

SceIofilemgrForDriver_3675ECB9

Version	NID
3.60	0x3675ECB9

could be sceIoSchedDispatcherFsResourceUnavailableForDriver.

some node op. dec ctr.

SceIofilemgrForDriver_3A79FAC9

Version	NID
3.60	0x3A79FAC9

delete fd by flags

int SceIofilemgrForDriver_3A79FAC9(SceUID fd);

SceIofilemgrForDriver_6BEEDDB4

Version	NID
3.60	0x6BEEDDB4

setting some to fd of dir entry

int SceIofilemgrForDriver_6BEEDDB4(SceUID fd, int a2);

SceIofilemgrForDriver_B499287E

Version	NID
3.60	0xB499287E

delete some puid from a1

int SceIofilemgrForDriver_B499287E(void *a1, int n, int *num);

SceIofilemgrForDriver_C722DF35

Version	NID
3.60	0xC722DF35

some node op. inc ctr.

sceIoSyncByFdForDriver

Version	NID
3.60	0x338dcd68

SceIofilemgr

_sceIoDcloseAsync

Version	NID
1.69	0x00B13031
3.60	different NID or not present

_sceIoOpenAsync

Version	NID
1.69-3.60	0x09CD0FC8

sceIoGetProcessDefaultPriority

Version	NID
1.69-3.60	0x0DC4F1BB

_sceIoRmdirAsync

Version	NID
1.69-3.60	0x13DC3244

sceIoSetPriority

Version	NID
1.69-3.60	0x14B2D56C

sceIoSyncByFd

Version	NID
1.69-3.60	0x16512F59

int sceIoSyncByFd(SceUID fd, unsigned int unk);

_sceIoIoctl

Version	NID
1.69-3.60	0x1D2988F1

_sceIoLseekAsync

Version	NID
1.69-3.60	0x2300858E

sceIoSetPriorityForSystem

Version	NID
1.69-3.60	0x27373135

_sceIoComplete

Version	NID
1.69	0x34E6A06E
3.60	different NID or not present

sceIoWrite

Version	NID
1.69-3.60	0x34EFD876

int sceIoWrite(SceUID fd, const void *data, SceSize size);

_sceIoGetThreadDefaultPriorityForSystem

Version	NID
1.69	0x36CAF911
3.60	different NID or not present

_sceIoSetThreadDefaultPriorityForSystem

Version	NID
0.990-1.69	0x38FE853B
3.60	different NID or not present

sceIoFlockForSystem

Version	NID
1.69-3.60	0x3E98E422

_sceIoDevctlAsync

Version	NID
1.69-3.60	0x3EE3F66E

sceIoDclose

Version	NID
1.69-3.60	0x422A221A

int sceIoDclose(SceUID fd);

_sceIoRename

Version	NID
1.69-3.60	0x4912F748

typedef struct sceIoRenameOpt {
  uint32_t unk_0;
  uint32_t unk_4;
  uint32_t unk_8;
  uint32_t unk_C;
} sceIoRenameOpt;

int _sceIoRename(const char *oldname, const char *newname, sceIoRenameOpt *opt);

sceIoLseek32

Version	NID
1.69-3.60	0x49252B9B

int sceIoLseek32(SceUID fd, int offset, int whence);

sceIoSetThreadDefaultPriority

Version	NID
1.69-3.60	0x49312108

_sceIoDevctl

Version	NID
1.000.071-3.740.011	0x515AC017

This performs device-specific operations. The details of the operations are driver-dependent.

This is a wrapper for sceIoDevctlForDriver.

/*
Arguments:
devname     Specified device ("<devname><unit>:")
cmd     Command code
arg     Pointer to device-driver-dependent parameter block
arglen     Number of bytes in device-driver-dependent parameter block
bufp     Pointer to return data storage block
buflen     Size of return data storage block

Return Values:
Non-negative (N>=0) Success (driver-dependent) 
<0 Error, e.g. SCE_ERROR_ERRNO_EMFILE, SCE_ERROR_ERRNO_ENODEV, SCE_ERROR_ERRNO_EUNSUP
*/

typedef struct SceIoDevctlOpt { // size is 0x18
    SceSize arglen; // Number of bytes in device-driver-dependent parameter block
    void *bufp; // Pointer to return data storage block
    SceSize buflen; // Size of return data storage block
    char reserved[0xC];
} SceIoDevctlOpt;

int _sceIoDevctl(
    const char *devname,
    int cmd,
    const void *arg,
    const SceIoDevctlOpt *pOpt
);

sceIoGetstatByFdAsync

Version	NID
1.69-3.60	0x5167AC1E

_sceIoPread

Version	NID
1.69-3.60	0x539FD5C4

typedef struct sceIoPreadOpt {
   SceOff offset;
   uint32_t unk_8;
   uint32_t unk_C;
} sceIoPreadOpt;

int _sceIoPread(SceUID uid, void *buffer, SceSize size, sceIoPreadOpt *opt);

// 3.60
typedef struct SceIoPreadSyscallArgs {
	void *buf;
	SceSize nbyte;
	SceOff offset;
} SceIoPreadSyscallArgs;

SceSSize _sceIoPread(SceUID fd, SceIoPreadSyscallArgs *args);

_sceIoGetstatByFdAsync

Version	NID
1.69	0x554292F0
3.60	different NID or not present

_sceIoChstatByFdAsync

Version	NID
1.69	0x58010F40
3.60	different NID or not present

_sceIoGetThreadDefaultPriority

Version	NID
1.69	0x5DC29460
3.60	different NID or not present

_sceIoSync

Version	NID
1.69-3.60	0x5DD867F7

typedef struct sceIoSyncOpt {
  uint32_t unk_0;
  uint32_t unk_4;
} sceIoSyncOpt;

int _sceIoSync(const char* device, unsigned int unk, sceIoSyncOpt* opt);

_sceIoRemoveAsync

Version	NID
1.69-3.60	0x5FFA47E2

_sceIoDreadAsync

Version	NID
1.69	0x64B233B8
3.60	different NID or not present

_sceIoSetThreadDefaultPriority

Version	NID
0.990-1.69	0x654E27B1
3.60	different NID or not present

_sceIoSyncByFdAsync

Version	NID
1.69	0x6F78FAFE
3.60	different NID or not present

_sceIoGetPriorityForSystem

Version	NID
1.69	0x70B7BB52
3.60	different NID or not present

sceIoReadAsync

Version	NID
1.69-3.60	0x773EBD45

_sceIoRemove

Version	NID
1.69-3.60	0x78955C65

typedef struct sceIoRemoveOpt {
  uint32_t unk_0;
  uint32_t unk_4;
} sceIoRemoveOpt;

int _sceIoRemove(const char *filename, sceIoRemoveOpt* opt);

sceIoSyncByFdAsync

Version	NID
1.69-3.60	0x7E1367CB

sceIoSetProcessDefaultPriority

Version	NID
1.69-3.60	0x7F2ABBAF

_sceIoRenameAsync

Version	NID
1.69-3.60	0x81794921

_sceIoSyncAsync

Version	NID
1.69-3.60	0x86DB0C0E

_sceIoDread

Version	NID
1.69-3.60	0x8713D662

int _sceIoDread(SceUID fd, SceIoDirent *dir);

_sceIoWrite

Version	NID
1.69	0x8C319CF0
3.60	different NID or not present

_sceIoGetstat

Version	NID
1.69-3.60	0x8E7E11F2

typedef struct sceIoGetstatOpt {
  uint32_t unk_0;
  uint32_t unk_4;
} sceIoGetstatOpt;

int _sceIoGetstat(const char *name, SceIoStat *buf, sceIoGetstatOpt *opt);

sceIoCloseAsync

Version	NID
1.69-3.60	0x8EA3616A

_sceIoMkdir

Version	NID
1.69-3.60	0x8F1ACC32

typedef struct sceIoMkdirOpt {
  uint32_t unk_0;
  uint32_t unk_4;
} sceIoMkdirOpt;

int _sceIoMkdir(const char *dirname, SceIoMode mode, sceIoMkdirOpt opt);

_sceIoCompleteMultiple

Version	NID
1.69-3.60	0x9111D004

_sceIoLseek32

Version	NID
1.69	0x92BDA6DA
3.60	different NID or not present

_sceIoPwrite

Version	NID
1.69-3.60	0x9654094B

typedef struct sceIoPwriteOpt {
   SceOff offset;
   uint32_t unk_8;
   uint32_t unk_C;
} sceIoPwriteOpt;

int _sceIoPwrite(SceUID uid, const void *data, int size, sceIoPwriteOpt *opt);

// 3.60
typedef struct SceIoPwriteSyscallArgs {
	const void *buf;
	SceSize nbyte;
	SceOff offset;
} SceIoPwriteSyscallArgs;

SceSSize _sceIoPwrite(SceUID fd, SceIoPwriteSyscallArgs *args);

_sceIoGetPriority

Version	NID
1.69	0x9E3F880D
3.60	different NID or not present

sceIoGetThreadDefaultPriority

Version	NID
1.69-3.60	0xA176CD03

_sceIoLseek

Version	NID
1.69-3.60	0xA604764A

typedef struct _sceIoLseekOpt { // size is 0x10
  SceOff offset;
  int whence;
  uint32_t unk;
} _sceIoLseekOpt;

SceOff _sceIoLseek(SceUID fd, _sceIoLseekOpt* opt);

// 3.60
typedef struct SceIoLseekSyscallArgs {
	SceOff offset;
	int whence;
	int padding;
} SceIoLseekSyscallArgs;

SceOff _sceIoLseek(SceUID fd, SceIoLseekSyscallArgs *args);

sceIoChstatByFdAsync

Version	NID
1.69-3.60	0xA9F89275

_sceIoGetProcessDefaultPriority

Version	NID
1.69	0xB0486482
3.60	different NID or not present

_sceIoSetPriority

Version	NID
0.990-1.69	0xB14192F0
3.60	different NID or not present

_sceIoReadAsync

Version	NID
1.69	0xB2B891E6
3.60	different NID or not present

_sceIoPwriteAsync

Version	NID
1.69-3.60	0xB2D0B2F4

_sceIoChstatAsync

Version	NID
1.69-3.60	0xB4B021D9

sceIoSetThreadDefaultPriorityForSystem

Version	NID
1.69-3.60	0xB9C9C9CF

_sceIoPreadAsync

Version	NID
1.69-3.60	0xBCF5684D

sceIoDopenAsync

Version	NID
1.69-3.60	0xC49C312F

sceIoClose

Version	NID
1.69-3.60	0xC70B8886

int sceIoClose(SceUID fd);

_sceIoWriteAsync

Version	NID
1.69	0xC92AF88F
3.60	different NID or not present

_sceIoOpen

Version	NID
1.69-3.60	0xCC67B6FD

typedef struct sceIoOpenOpt {
  uint32_t unk_0;
  uint32_t unk_4;
} sceIoOpenOpt;

SceUID _sceIoOpen(const char *filename, int flag, SceIoMode mode, sceIoOpenOpt *opt);

sceIoCancel

Version	NID
1.69-3.60	0xCEF48835

sceIoComplete

Version	NID
1.69-3.60	0xD1C49D2F

_sceIoChstat

Version	NID
1.69-3.60	0xD2EE455F

typedef struct sceIoChstatOpt {
  uint32_t unk_0;
  uint32_t unk_4;
} sceIoChstatOpt;

int _sceIoChstat(const char *name, const SceIoStat *stat, unsigned int cbit, sceIoChstatOpt *opt);

_sceIoSetProcessDefaultPriority

Version	NID
0.990-1.69	0xD302DCB9
3.60	different NID or not present

_sceIoGetstatAsync

Version	NID
1.69-3.60	0xD414C89F

sceIoDcloseAsync

Version	NID
1.69-3.60	0xDC2D7D38

_sceIoIoctlAsync

Version	NID
1.69-3.60	0xE00DC256

_sceIoChstatByFd

Version	NID
1.69-3.60	0xE0BE2A30

int _sceIoChstatByFd(SceUID fd, const SceIoStat *buf, unsigned int cbit);

sceIoWriteAsync

Version	NID
1.69-3.60	0xE0D63D2A

_sceIoGetstatByFd

Version	NID
1.69-3.60	0xE6C53567

int _sceIoGetstatByFd(SceUID fd, SceIoStat *stat);

_sceIoSetPriorityForSystem

Version	NID
0.990-1.69	0xE6C923B3
3.60	different NID or not present

_sceIoDopen

Version	NID
1.69-3.60	0xE6E614B5

typedef struct sceIoDopenOpt {
  uint32_t unk_0;
  uint32_t unk_4;
} sceIoDopenOpt;

SceUID _sceIoDopen(const char *dirname, sceIoDopenOpt *opt);

sceIoGetPriorityForSystem

Version	NID
1.69-3.60	0xEF5432ED

sceIoGetPriority

Version	NID
1.69-3.60	0xF2A472A1

_sceIoRead

Version	NID
1.69-3.60	different NID or not present

_sceIoSyncByFd

Version	NID
1.69-3.60	different NID or not present

_sceIoCloseAsync

Version	NID
1.69-3.60	different NID or not present

_sceIoDopenAsync

Version	NID
1.69-3.60	different NID or not present

sceIoDreadAsync

Version	NID
1.69-3.60	0xF59F37B0

_sceIoMkdirAsync

Version	NID
1.69-3.60	0xF5C58B21

_sceIoCancel

Version	NID
1.69	0xF5DEEA19
3.60	different NID or not present

_sceIoClose

Version	NID
1.69	0xF69FB394
3.60	different NID or not present

_sceIoDclose

Version	NID
0.990-1.69	0xFAFF0002
3.60	different NID or not present

sceIoGetThreadDefaultPriorityForSystem

Version	NID
1.69-3.60	0xFCBCEAED

sceIoRead

Version	NID
1.69-3.60	0xFDB32293

sceIoRead(SceUID fd, void *data, SceSize size);

_sceIoRmdir

Version	NID
1.69-3.60	0xFFFB4D76

typedef struct sceIoRmdirOpt {
  uint32_t unk_0;
  uint32_t unk_4;
} sceIoRmdirOpt;

int _sceIoRmdir(const char *dirname, sceIoRmdirOpt* opt);

Device Drivers

@@ Line 2: / Line 2: @@
 == Module ==
-This module exists in only in non-secure world. The SELF can be found in <code>os0:kd/iofilemgr.skprx</code>.
-=== Known NIDs ===
+This module exists only in non-secure world. The SELF can be found in <code>os0:kd/iofilemgr.skprx</code>.
 {| class="wikitable"
 |-
-! Version !! Name !! World !! Privilege !! NID
+! Version !! World !! Privilege
 |-
-| 1.69 || SceIofilemgr || Non-secure || Kernel || 0x3E244C17
+| 0.990-3.60 || Non-secure || Kernel
-|-
-| 3.60 || SceIofilemgr || ? || Kernel || 0x9642948C
 |}
 == Libraries ==
-This module is accessible by usermode.
 === Known NIDs ===
 {| class="wikitable"
 |-
 ! Version !! Name !! World !! Visibility !! NID
 |-
-| 1.69 || [[SceIofilemgr#SceIofilemgrForDriver|SceIofilemgrForDriver]] || Non-secure || Kernel || 0x40FD29C7
+| 1.69-3.60 || [[SceIofilemgr#SceIofilemgrForDriver|SceIofilemgrForDriver]] || Non-secure || Kernel || 0x40FD29C7
 |-
-| 3.60 || [[SceIofilemgr#SceIofilemgrForDriver|SceIofilemgrForDriver]] || ? || Kernel || 0x40FD29C7
+| 1.69-3.60 || [[SceIofilemgr#SceIofilemgr|SceIofilemgr]] || Non-secure || User || 0xF2FF276E
-|-
-| 1.69 || [[SceIofilemgr#SceIofilemgr|SceIofilemgr]] || Non-secure || User || 0xF2FF276E
-|-
-| 3.60 || [[SceIofilemgr#SceIofilemgr|SceIofilemgr]] || ? || User || 0xF2FF276E
 |}
-== Mount Points ==
+== Debug callback type ==
-This table is stored in data segment of SceIofilemgr as array of <code>vfs_mount_point_info</code> elements.
+{| class="wikitable"
+|-
-When sceVfsMount is executed it finds vfs_add_data element by filesystem string and then selects appropriate mount scenario by devMinor and devMajor.
+! Type !! When
+|-
-*<code><rnd></code> means random numeric string of length 13
+| 0x0 || Scheduled sceIoOpen start
+|-
-{| class="wikitable sortable"
+| 0x1 || Scheduled sceIoOpen end
+|-
+| 0x2 || sceVopOpen start
+|-
+| 0x3 || sceVopOpen end
+|-
+| 0x4 || Scheduled sceIoClose start
+|-
+| 0x5 || Scheduled sceIoClose end
+|-
+| 0x6 || sceVopClose start
+|-
+| 0x7 || sceVopClose end
+|-
+| 0x8 || Scheduled sceIoRead start
 |-
-! Unix Mount || Dev Major || Dev Minor || Filesystem || Vita Mount || Block Device || VSH Mount Id
+| 0x9 || Scheduled sceIoRead end
 |-
-| /tty || 0x4000020 || 0x6003 || dummy_ttyp_dev_fs || tty || dummy_ttyp_dev_fs || 0x0
+| 0xA || sceVopRead start
 |-
-| /dev || 0x10 || 0x3 || sdstor_dev_fs || sdstor0: || sd || 0x1
+| 0xB || sceVopRead end
 |-
-| /md || 0x10 || 0x2003 || md_dev_fs || md0: || md || 0x2
+| 0xC || Scheduled sceIoWrite start
 |-
-| /sd/exfat || 0x2030001 || 0x30002 || exfat || sd0: || sdstor0:ext-pp-act-a, sdstor0:ext-lp-act-entire || 0x100
+| 0xD || Scheduled sceIoWrite end
 |-
-| /os/exfat || 0x1000001 || 0x1002 || exfat || os0: || sdstor0:int-lp-act-os || 0x200
+| 0xE || sceVopWrite start
 |-
-| /vs/exfat || 0x1000001 || 0x1002 || exfat || vs0: || sdstor0:int-lp-ign-vsh || 0x300
+| 0xF || sceVopWrite end
 |-
-| /vd/exfat || 0x1000001 || 0x10002 || exfat || vd0: || sdstor0:int-lp-ign-vshdata || 0x400
+| 0x10 || Scheduled sceIoPread start
 |-
-| /tm/exfat || 0x1000001 || 0x10002 || exfat || tm0: || sdstor0:int-lp-ign-vtrm || 0x500
+| 0x11 || Scheduled sceIoPread end
 |-
-| /ur/exfat || 0x1000001 || 0x50002 || exfat || ur0: || sdstor0:int-lp-ign-user || 0x600
+| 0x12 || sceVopPread start
 |-
-| /ud/exfat || 0x1000001 || 0x10002 || exfat || ud0: || sdstor0:int-lp-ign-updater || 0x700
+| 0x13 || sceVopPread end
 |-
-| /ux/exfat || 0x2020001 || 0x30002 || exfat || ux0: || sdstor0:xmc-lp-ign-userext / sdstor0:int-lp-ign-userext || 0x800
+| 0x14 || Scheduled sceIoPwrite start
 |-
-| /gro/exfat || 0x2010001 || 0x21002 || exfat || gro0: || sdstor0:gcd-lp-ign-gamero || 0x900
+| 0x15 || Scheduled sceIoPwrite end
 |-
-| /grw/exfat || 0x2010001 || 0x20002 || exfat || grw0: || sdstor0:gcd-lp-ign-gamerw || 0xA00
+| 0x16 || sceVopPwrite start
 |-
-| /sa/exfat || 0x1000001 || 0x1002 || exfat || sa0: || sdstor0:int-lp-ign-sysdata || 0xB00
+| 0x17 || sceVopPwrite end
 |-
-| /pd/exfat || 0x1000001 || 0x1002 || exfat || pd0: || sdstor0:int-lp-ign-pidata || 0xC00
+| 0x18 || Scheduled sceIoLseek start
 |-
-| /imc/exfat || 0x2020001 || 0x30002 || exfat || imc0: || sdstor0:int-lp-ign-userext || 0xD00
+| 0x19 || Scheduled sceIoLseek end
 |-
-| /xmc/exfat || 0x2020001 || 0x30002 || exfat || xmc0: || sdstor0:xmc-lp-ign-userext || 0xE00
+| 0x1A || sceVopLseek start
 |-
-| /uma/exfat || 0x2030001 || 0x2 || exfat || uma0: || sdstor0:uma-pp-act-a, sdstor0:uma-lp-act-entire || 0xF00
+| 0x1B || sceVopLseek end
 |-
-| /lma/exfat || 0x1 || 0x5 || exfat || lma0: || / || 0x10000
+| 0x1C || Scheduled sceIoMkdir start
 |-
-| /lmb/exfat || 0x1 || 0x5 || exfat || lmb0: || / || 0x20000
+| 0x1D || Scheduled sceIoMkdir end
 |-
-| /mfa/exfat || 0x1 || 0x5 || exfat || mfa0: || / || 0x50000
+| 0x1E || sceVopMkdir start
 |-
-| /mfb/exfat || 0x1 || 0x5 || exfat || mfb0: || / || 0x60000
+| 0x1F || sceVopMkdir end
 |-
-| /PD<rnd> || 0x3 || 0x1001 || PFS_GDSD_INF || PD<rnd>0 ||  || 0x0
+| 0x20 || Scheduled sceIoRmdir start
-|}
-== Block Device Naming Rules ==
-First level prefix
-*int
-*ext
-*gcd
-*mcd
-*uma
-*usd
-*xmc
-Second level prefix
-*lp
-*pp
-Third level prefix
-*ina
-*act
-*ign
-Forth level prefix
-*unused
-*idstor
-*sloader
-*os
-*vsh
-*vshdata
-*vtrm
-*user
-*userext
-*gamero
-*gamerw
-*updater
-*sysdata
-*mediaid
-*pidata
-*entire
-== Partition Block Devices ==
-Each partition has numeric alias (string) that looks like to be used to reference the partition.
-Numeric names most likely follow order of partitions in MBR.
-To access device node use <code>/dev</code> prefix (like <code>/dev/gcd-lp-ign-gamero</code>).
-In total there can be 16 aliases from 0 to 15 per physical device (eMMC, Game Card, Memory Card). Alias 16 is hardcoded and is called <code>entire</code>.
-Aliases 0-15 correspond to eMMC.
-Aliases 100-115 correspond to Game Card.
-Aliases 200-215 correspond to Memory Card.
-{| class="wikitable"
 |-
-! block device !! numeric name
+| 0x21 || Scheduled sceIoRmdir end
 |-
-| int-lp-ign-idstor (need to confirm) || 000
+| 0x22 || sceVopRmdir start
 |-
-| int-lp-ign-sloader (need to confirm) || 001
+| 0x23 || sceVopRmdir end
 |-
-| - || 002
+| 0x24 || Scheduled sceIoGetstat start
 |-
-| int-lp-act-os || 003
+| 0x25 || Scheduled sceIoGetstat end
 |-
-| - || 004
+| 0x26 || sceVopGetstat start
 |-
-| int-lp-ign-sysdata || 005
+| 0x27 || sceVopGetstat end
 |-
-| int-lp-ign-vtrm || 006
+| 0x28 || Scheduled sceIoRemove start
 |-
-| int-lp-ign-vsh || 007
+| 0x29 || Scheduled sceIoRemove end
 |-
-| int-lp-ign-vshdata || 008
+| 0x2A || sceVopRemove start
 |-
-| int-lp-ign-updater || 009
+| 0x2B || sceVopRemove end
 |-
-| int-lp-ign-pidata || 010
+| 0x2C || Scheduled sceIoRename start
 |-
-| int-lp-ign-user || 011
+| 0x2D || Scheduled sceIoRename end
 |-
-| int-lp-ign-userext || 012
+| 0x2E || sceVopRename start
 |-
-| int-lp-act-entire || 016
+| 0x2F || sceVopRename end
 |-
-| gcd-lp-ign-gamero, gcd-lp-act-mediaid (need to confirm) || 100
+| 0x30 || -
 |-
-| gcd-lp-ign-gamerw (need to confirm) || 101
+| 0x31 || -
 |-
-| ext-lp-act-entire (need to confirm) || 116
+| 0x32 || Scheduled sceIoDopen start
 |-
-| mcd-lp-act-mediaid || 200
+| 0x33 || Scheduled sceIoDopen end
 |-
-| - || 201
+| 0x34 || sceVopDopen start
 |-
-| mcd-lp-act-entire (need to confirm) || 216
+| 0x35 || sceVopDopen end
 |-
-|}
+| 0x36 || Scheduled sceIoDread start
-== VFS Nodes ==
-{| class="wikitable"
 |-
-! Module !! Name !! Comment
+| 0x37 || Scheduled sceIoDread end
 |-
-| [[SceSdstor|SceSdstor]] || sdstor_dev_fs ||
+| 0x38 || sceVopDread start
 |-
-| [[SceExfatfs|SceExfatfs]] || exfat ||
+| 0x39 || sceVopDread end
 |-
-| [[SceIofilemgr|SceIofilemgr]] || dummy_ttyp_dev_fs ||
+| 0x3A || Scheduled sceIoDclose start
 |-
-| [[ScePfsMgr|ScePfsMgr]] || PFS_REDIRECT_INF || Redirect Pseudo Drive.
+| 0x3B || Scheduled sceIoDclose end
 |-
-| [[ScePfsMgr|ScePfsMgr]] || PFS_GDSD_INF || Gamedata/Savedata Pseudo Drive.
+| 0x3C || sceVopDclose start
 |-
-| [[ScePfsMgr|ScePfsMgr]] || PFS_AC_INF || AC Pseudo Drive.
+| 0x3D || sceVopDclose end
 |-
-|}
+| 0x3E || Scheduled sceIoChstat start
-== VFS Operations ==
-*implemented operation is marked as <code>implemented</code>
-*not implemented is marked as <code> </code>
-*return 0 placeholder is marked as <code>0</code>
-*return error is marked with corresponding error name
-{| class="wikitable"
-|-
-! Function !! sdstor_dev_fs !! exfat !! dummy_ttyp_dev_fs !! PFS_REDIRECT_INF !! PFS_GDSD_INF !! PFS_AC_INF
-|-
-| 1 || implemented || implemented || implemented || implemented || implemented || implemented
-|-
-| 2 || SCE_ERROR_ERRNO_EBUSY || implemented || 0 || implemented || implemented || implemented
-|-
-| 3 || implemented || implemented || implemented || implemented || implemented || implemented
-|-
-| 4 ||  || implemented ||  ||  ||  ||
-|-
-| 5 ||  ||  ||  ||  ||  ||
 |-
-| 6 ||  ||  ||  ||  ||  ||
+| 0x3F || Scheduled sceIoChstat end
 |-
-| 7 ||  || implemented ||  || 0 || implemented || implemented
+| 0x40 || sceVopChstat start
 |-
-| 8 ||  ||  ||  ||  ||  ||
+| 0x41 || sceVopChstat end
 |-
-| 9 || 0 || 0 || 0 || 0 || 0 || 0
+| 0x42 || Scheduled sceIoIoctl start
 |-
-| 10 ||  || 0 || 0 || 0 || 0 || 0
+| 0x43 || Scheduled sceIoIoctl end
 |-
-| 11 ||  ||  ||  ||  ||  ||
+| 0x44 || sceVopIoctl start
 |-
-| 12 || implemented || implemented ||  || implemented || implemented || implemented
+| 0x45 || sceVopIoctl end
 |-
-| 13 || implemented || implemented ||  || implemented || implemented || implemented
+| 0x46 || Scheduled sceIoSync start
 |-
-|}
+| 0x47 || Scheduled sceIoSync end
-== VFS Node Operations ==
-*implemented operation is marked as <code>implemented</code>
-*not implemented is marked as <code> </code>
-*return 0 placeholder is marked as <code>0</code>
-*return error is marked with corresponding error name
-{| class="wikitable"
 |-
-! Function !! sdstor_dev_fs !! exfat !! dummy_ttyp_dev_fs !! PFS_REDIRECT_INF !! PFS_GDSD_INF !! PFS_AC_INF
+| 0x48 || sceVopSync start
 |-
-| 1 || implemented || implemented  || 0            || implemented || implemented || implemented
+| 0x49 || sceVopSync end
 |-
-| 2 ||  || implemented ||                          || implemented || implemented || implemented
+| 0x4A || Scheduled sceIoFgetstat start
 |-
-| 3 || implemented  || implemented  || 0           || implemented || implemented || implemented
+| 0x4B || Scheduled sceIoFgetstat end
 |-
-| 4 || implemented  || implemented  || implemented || implemented || implemented || implemented
+| 0x4C || sceVopFgetstat start/end
 |-
-| 5 || implemented  || implemented  || 0           || implemented || implemented || implemented
+| 0x4D || -
 |-
-| 6 || implemented  || implemented  || implemented || implemented || implemented || implemented
+| 0x4E || Scheduled sceIoFchstat start
 |-
-| 7 || implemented  || implemented  || 0           || implemented || implemented || implemented
+| 0x4F || Scheduled sceIoFchstat end
 |-
-| 8 ||  || SCE_ERROR_ERRNO_EUNSUP || 0             || implemented || implemented || implemented
+| 0x50 || sceVopFchstat start
 |-
-| 9 || implemented  || implemented ||              || implemented || implemented || implemented
+| 0x51 || sceVopFchstat end
 |-
-| 10 ||  || implemented ||                         || implemented || implemented || implemented
+| 0x52 || sceVopLookup start
 |-
-| 11 ||  || implemented ||                         || implemented || implemented || implemented
+| 0x53 || sceVopLookup end
 |-
-| 12 ||  || implemented ||                         || implemented || implemented || implemented
+| 0x54 || sceVopCreate start
 |-
-| 13 ||  || implemented ||                         || implemented || implemented || implemented
+| 0x55 || sceVopCreate end
 |-
-| 14 ||  || implemented ||                         || implemented || implemented || implemented
+| 0x56 || sceVopInactive start
 |-
-| 15 ||  || implemented ||                         || implemented || implemented || implemented
+| 0x57 || sceVopInactive end
 |-
-| 16 ||  || implemented ||                         || implemented || implemented || implemented
+| 0x58 || sceVopWhiteout start
 |-
-| 17 ||  || implemented ||                         || implemented || implemented || implemented
+| 0x59 || -
 |-
-| 18 ||  ||  ||                                    ||  ||  ||
+| 0x5A || sceVopWhiteout end
 |-
-| 19 || implemented  || implemented ||             || implemented || implemented || implemented
+| 0x5B || sceVopCleanup start
 |-
-| 20 || implemented  || implemented ||             || implemented || implemented || implemented
+| 0x5C || sceVopCleanup end
 |-
-| 21 || 0 || implemented || 0                      || implemented || implemented || implemented
+| 0x5D || sceVfsOpMount start
 |-
-| 22 ||  || implemented ||                         ||  ||  ||
+| 0x5E || sceVfsOpMount end
 |-
-| 23 ||  || implemented ||                         ||  ||  ||
+| 0x5F || sceVfsOpUnmount start
 |-
-| 24 || 0 || implemented ||                        || implemented || implemented || implemented
+| 0x60 || sceVfsOpUnmount end
 |-
-| 25 ||  || implemented ||                         || implemented || implemented || implemented
+| 0x61 || sceVfsOpDevctl start
 |-
-| 26 ||  || implemented ||                         || implemented || implemented || implemented
+| 0x62 || sceVfsOpDevctl end
 |-
-| 27 ||  || implemented ||                         || implemented || implemented || implemented
+| 0x63 || sceVfsOpSync start
 |-
-| 28 ||  || implemented ||                         || implemented || implemented || implemented
+| 0x64 || sceVfsOpSync end
 |-
-| 29 ||  ||  ||                                    ||  ||  ||
+| 0x65 || sceVfsOpDecodePathElem start
 |-
+| 0x66 || sceVfsOpDecodePathElem end
 |}
-== Typical i/o operation execution ==
+== Mount Points ==
-This is a very brief desctiption for overall understanding of io <code>vfs_node</code> operations.
+This table is stored in data segment of SceIofilemgr as array of <code>vfs_mount_point_info</code> elements.
-Implementation of SceIofilemgr is quite solid and most of the functions are implemented in the same manner however there could be exceptions.
-When io operation like <code>sceIoLseek</code> is called here is what happens:
-*all user space arguments are copied to kernel space, usually onto the kernel stack. all user space uids are converted to kernel space uids
-*optionally control may be passed to wrapper function that also does conversion
-*then control is passed to kernel level function like <code>sceIoLseekForDriver</code>
-*kernel level function checks 0x2198 (IoSchedulerDispatcher initialized) flag
-if dispatcher is not initialized:
+When [[#sceVfsMountForDriver]] is executed, it finds vfs_add_data element by filesystem string and then selects appropriate mount scenario by devMinor and devMajor.
-*kernel level function updates 0x1964 (i/o dirty) and 0x1980 (i/o counter) flags
-*kernel level function spawns separate thread and passes all arguments in single structure
-*separate thread then unpacks all arguments, finds <code>vfs_node</code> and calls exported function like <code>vfs_node_func7</code>
-*exported function packs all arguments into single stucture and calls real callback since it has <code>vfs_node</code> with node operation table
-*callback routine should be located in generic device driver, like SceSdstor, SceExfatfs or ScePfsMgr. It unpacks the arguments and then does something. For example SceSdstor dispatches the call further to SceSdif, SceWlanBt, SceMsif and SceUsbMass.
-*kernel level function updates 0x1980 (i/o counter) flag
-if dispatcher is initialized:
+*<code><rnd></code> means random numeric string of length 13
-*kernel level function passes arguments to wrapper
-*wrapper initializes <code>io_contex</code> and assigns i/o operation index
-*wrapper updates 0x1964 (i/o dirty) and 0x1980 (i/o counter) flags
-*wrapper runs dispatcher function (offset 0x17C00) in separate thread. this function selects proper <code>vfs_node</code> function based on i/o operation index.
-*wrapper updates 0x1980 (i/o counter) flag
-== i/o operation index ==
+See [[SceSdstor]] for "sdstor0:" Block Device.
-Typically operations are dispatched from kernel functions.
+{| class="wikitable sortable"
+! Unix Mount || Dev Major || Dev Minor || fsName || assignName || blockdevName || VSH Mount Id || Comment
-However there are exceptions: sceIoLseek32, sceIoDopenAsync, sceIoDreadAsync, sceIoDcloseAsync user functions can be dispatched.
-Typically operations have normal and async version - regulated by async flag in <code>io_context</code>.
-However there are exceptions: sceIoLseek32, sceIoIoctlForDriver, sceIoDevctlForDriver, sceIoGetstatForDriver_2, sceIoChstatForDriver_2, sceIoDreadForDriver_2 do not have async version.
-{| class="wikitable"
 |-
-! Index !! Normal Operation !! Async Operation !! Vfs Node Function !! Vfs Function
+| /PD<rnd> || 0x3 || 0x1001 || PFS_GDSD_INF || PD<rnd>0 || - || 0x0 || -
 |-
-| 1 || sceIoOpenForDriver || sceIoOpenAsyncForDriver || ||
+| /sd/exfat || 0x2030001 || 0x30002 || [[SceExfatfs|exfat]] || sd0: || sdstor0:ext-lp-act-entire || 0x100 || -
 |-
-| 2 || sceIoCloseForDriver || sceIoCloseAsyncForDriver || ||
+| /os/exfat || 0x1000001 || 0x1002 || [[SceExfatfs|exfat]] || os0: || sdstor0:int-lp-act-os || 0x200 || Formatted as FAT16.
 |-
-| 3 || sceIoReadForDriver || sceIoReadAsyncForDriver || ||
+| /vs/exfat || 0x1000001 || 0x1002 || [[SceExfatfs|exfat]] || vs0: || sdstor0:int-lp-ign-vsh || 0x300 || Formatted as FAT16.
 |-
-| 4 || sceIoWriteForDriver || sceIoWriteAsyncForDriver || ||
+| /vd/exfat || 0x1000001 || 0x10002 || [[SceExfatfs|exfat]] || vd0: || sdstor0:int-lp-ign-vshdata || 0x400 || Formatted as FAT16.
 |-
-| 5 || sceIoLseekForDriver || sceIoLseekAsyncForDriver || 7 ||
+| /tm/exfat || 0x1000001 || 0x10002 || [[SceExfatfs|exfat]] || tm0: || sdstor0:int-lp-ign-vtrm || 0x500 || Formatted as FAT16.
 |-
-| 6 || sceIoLseek32 || N/A || 7 ||
+| /ur/exfat || 0x1000001 || 0x50002 || [[SceExfatfs|exfat]] || ur0: || sdstor0:int-lp-ign-user || 0x600 || Formatted as exFAT.
 |-
-| 7 || sceIoIoctlForDriver || N/A || 8 ||
+| /ud/exfat || 0x1000001 || 0x10002 || [[SceExfatfs|exfat]] || ud0: || sdstor0:int-lp-ign-updater || 0x700 || Formatted as FAT16.
 |-
-| 8 || sceIoRemoveForDriver || sceIoRemoveAsyncForDriver || ||
+| /ux/exfat || 0x2020001 || 0x30002 || [[SceExfatfs|exfat]] || ux0: || External: sdstor0:xmc-lp-ign-userext<br />Internal: sdstor0:int-lp-ign-userext || 0x800 || Formatted as exFAT.
 |-
-| 9 || sceIoDopenForDriver || sceIoDopenAsyncForDriver || ||
+| /gro/exfat || 0x2010001 || 0x21002 || [[SceExfatfs|exfat]] || gro0: || sdstor0:gcd-lp-ign-gamero || 0x900 || Formatted as exFAT.
 |-
-| 10 || sceIoDcloseForDriver || sceIoDcloseAsyncForDriver || ||
+| /grw/exfat || 0x2010001 || 0x20002 || [[SceExfatfs|exfat]] || grw0: || sdstor0:gcd-lp-ign-gamerw || 0xA00 || Formatted as exFAT.
 |-
-| 11 || sceIoDreadForDriver || sceIoDreadAsyncForDriver || 14 ||
+| /sa/exfat || 0x1000001 || 0x1002 || [[SceExfatfs|exfat]] || sa0: || sdstor0:int-lp-ign-sysdata || 0xB00 || Formatted as FAT16.
 |-
-| 12 || sceIoMkdirForDriver || sceIoMkdirAsyncForDriver || 10 ||
+| /pd/exfat || 0x1000001 || 0x1002 || [[SceExfatfs|exfat]] || pd0: || sdstor0:int-lp-ign-pidata || 0xC00 || Formatted as exFAT.
 |-
-| 13 || sceIoRmdirForDriver || sceIoRmdirAsyncForDriver || ||
+| /imc/exfat || 0x2020001 || 0x30002 || [[SceExfatfs|exfat]] || imc0: || sdstor0:int-lp-ign-userext || 0xD00 || Formatted as exFAT.
 |-
-| 14 || sceIoRenameForDriver || sceIoRenameAsyncForDriver || ||
+| /xmc/exfat || 0x2020001 || 0x30002 || [[SceExfatfs|exfat]] || xmc0: || sdstor0:xmc-lp-ign-userext || 0xE00 || Formatted as exFAT.
 |-
-| 15 || sceIoChstatForDriver || sceIoChstatAsyncForDriver || 16 ||
+| /uma/exfat || 0x2030001 || 0x2 || [[SceExfatfs|exfat]] || uma0: || sdstor0:uma-lp-act-entire || 0xF00 || -
 |-
-| 16 || sceIoChstatByFdForDriver || sceIoChstatByFdAsyncForDriver || 26 ||
+| /tty || 0x4000020 || 0x6003 || dummy_ttyp_dev_fs || tty || dummy_ttyp_dev_fs || 0x0 || -
 |-
-| 17 || sceIoGetstatForDriver || sceIoGetstatAsyncForDriver || 15 ||
+| /dev || 0x10 || 0x3 || sdstor_dev_fs || sdstor0: || sd || 0x1 || -
 |-
-| 18 || sceIoGetstatByFdForDriver || sceIoGetstatByFdAsyncForDriver || 25 ||
+| /md || 0x10 || 0x2003 || md_dev_fs || md0: || md || 0x2 || -
 |-
-| 19 || sceIoDevctlForDriver || N/A || || 12
+| /lma/exfat || 0x1 || 0x5 || [[SceExfatfs|exfat]] || lma0: || / || 0x10000 || -
 |-
-| 20 || sceIoSyncForDriver || sceIoSyncAsyncForDriver || ||
+| /lmb/exfat || 0x1 || 0x5 || [[SceExfatfs|exfat]] || lmb0: || / || 0x20000 || -
 |-
-| 21 || sceIoSyncByFdForDriver || sceIoSyncByFdAsyncForDriver || ||
+| /mfa/exfat || 0x1 || 0x5 || [[SceExfatfs|exfat]] || mfa0: || / || 0x50000 || -
 |-
-| 22 || sceIoPreadForDriver || sceIoPreadAsyncForDriver || ||
+| /mfb/exfat || 0x1 || 0x5 || [[SceExfatfs|exfat]] || mfb0: || / || 0x60000 || -
 |-
-| 23 || sceIoPwriteForDriver || sceIoPwriteAsyncForDriver || ||
+| /host || 0x3000004 || 0x8006 || - || host0: || deci4p_drfp_dev_fs || - || -
-|-
+|}
-| 24 || sceIoGetstatForDriver_2 || N/A || ||
+Dev Minor
+{| class="wikitable sortable"
+! Mask || Value || Comment
 |-
-| 25 || sceIoChstatForDriver_2 || N/A || ||
+| 0xFF || - || type
 |-
-| 26 || sceIoDreadForDriver_2 || N/A || ||
+| 0xFF00 || - || flags
 |-
-| 27 || N/A || sceIoDopenAsync || ||
+| 0xFF00 || 0x1000 || Read Only
 |-
-| 28 || N/A || sceIoDreadAsync || ||
+| 0xFF0000 || 0x10000 || Invalidate fd on susppend/resume within process/system
 |-
-| 29 || N/A || sceIoDcloseAsync || ||
+| 0xFF0000 || 0x20000 || External media
 |}
-== Types ==
+== VFS Implementation ==
-<source lang="c">
+Information can be found on separate page [[VFS_Implementation|VFS Implementation]]
-typedef struct vfs_block_dev_info //size is 0x14
+==== Note ====
-{
-  char* vitaMount;
-  char* filesystem; // Some name, I guess it is filesystem
-  char* blockDevicePrimary;
-  char* blockDeviceSecondary; // can be 0
-  uint32_t vshMountId; //must be same as in mount_point_info
-}vfs_block_dev_info;
-typedef struct vfs_mount_point_info_base
+Max vfs node number is 0x1000.
-{
-  char* unixMount;
-  uint32_t unk_4; //zero
-  uint32_t devMajor;
-  uint32_t devMinor;
-  char* filesystem;
+== Types ==
-  void* unk_14; //zero
-  vfs_block_dev_info* blockDev1;
-  uint32_t unk_1C; //zero
-} vfs_mount_point_info_base;
-typedef struct vfs_mount_point_info //size is 0x38
+<source lang="C">
-{
+typedef struct SceIoMount { // size is 0x34-bytes
-  uint32_t vshMountId;
+	void *mnt;
+	int mntId;
-  vfs_mount_point_info_base base;
+	char assignName[0x20];
+	SceUInt32 openedEntryNum;
+	SceBool unk_0x2C;
+	int unk_0x30;
+} SceIoMount;
-  vfs_block_dev_info* blockDev2; //same as blockDev1
+typedef struct SceIoMountInfo { // size is 0x54C-bytes
+	void *mnt;
-  uint32_t unk_28; //zero - except for (ux0:, gro0:, grw0:) - maybe related to device specific data?
+	int mntId;
-  uint32_t unk_2C; //zero
+	char assignName[0x20];
+	SceUInt32 openedEntryNum;
-  uint32_t unk_30; //zero
+	int unk_0x2C;
-  uint32_t unk_34; //zero
+	int unk_0x30;
-}vfs_mount_point_info;
+	int unk_0x34;
+	int unk_0x38;
+	int unk_0x3C;
+	int unk_0x40;
+	int unk_0x44;
+	int unk_0x48;
+	int unk_0x4C;
+	int unk_0x50;
+	int unk_0x54;
+	int unk_0x58;
+	int unk_0x5C;
+	int unk_0x60;
+	int unk_0x64;
+	int unk_0x68;
+	int unk_0x6C;
+	int unk_0x70;
+	int unk_0x74;
+	int unk_0x78;
+	int unk_0x7C;
+	int unk_0x80;
+	int unk_0x84;
+	char unk_0x88[0x400];
+	int unk_0x488;
+	char unk_0x48C[0x40];
+	char blockdevName[0x40];
+	char unk_0x50C[0x40];
+} SceIoMountInfo;
-//probably vfsops
+typedef struct vfs_node_info { // size is 0x38
-struct node_ops1 // size is 0x34 (13 pointers)
+   char name[0x20];
-{
+   vfs_node* node; // can be zero
-  int (*func1)(void* ctx);
+   uint32_t unk_24; // probably size of vfs_node
-  int (*func2)(void* ctx); // ?
+   uint32_t unk_28; // probably flags
-  int (*func3)(void* ctx);
+   vfs_node_info* node_info_2C; // can be zero
-  int (*func4)(void* ctx);
+   vfs_node_info* node_info_30; // can be zero
-  int (*func5)(void* ctx); // not implemented by all
+   vfs_node_info* node_info_34; // can be zero
-  int (*func6)(void* ctx); // not implemented by all
+} vfs_node_info;
-  int (*func7)(void* ctx);
-  int (*func8)(void* ctx); // not implemented by all
-  int (*func9)(void* ctx); // called by sceVfsAddVfs
-  int (*func10)(void* ctx); // called by sceVfsDeleteVfs
-  int (*func11)(void* ctx); // not implemented by all
-  int (*func12)(void* ctx); // sceIoDevctlForDriver
-  int (*func13)(void* ctx); // (initialize partition entry in table)(map block device name on numeric name)
-};
-//probably vnodeops
+// It looks like this structure is used to get some response into "error" field
-struct node_ops2 // size is 0x74 (29 pointers)
+// when executing sceKernelSignalCondTo calls.
-{
+// This structure is used by SceIofileDaemon when it monitors mount/unmount async requests
-  int (*func1)(void* ctx); // sceIoOpenForDriver (this function creates device handle) (It operates with normal block device name and unix mount)
+// in SceIofilemgrMount thread using SceIofilemgrMount conditional variable.
-  int (*func2)(void* ctx); // sceIoOpenForDriver (another one ?)
+// Upon completion it issues the signal and result of operation is stored in error field.
-  int (*func3)(void* ctx); // sceIoOpenForDriver (another one ?) or sceIoCloseForDriver
+// It looks like operations 1/2 are used for normal filesystems.
-  int (*func4)(void* ctx); // add partition (add vfsNode) (initialize partition entry in table) (for example happens on card insert exclusively) (operates with numeric names)
+// Operations 3/4 are used for PFS_GDSD_INF filesystem.
-  int (*func5)(void* ctx); // sceIoReadForDriver
+typedef struct cond_ctx {
-  int (*func6)(void* ctx); // sceIoWriteForDriver
+   uint32_t op_index; // operation index. 1,3 - mount. 2,4 - unmount
-  int (*func7)(void* ctx); // sceIoLseekForDriver or sceIoLseek32?
+    uint32_t unk_4;
-  int (*func8)(void* ctx); // sceIoIoctlForDriver
-  int (*func9)(void* ctx); // remove partition (remove vfsNode) (deinitialize partition entry in table) (for example happens on card remove exclusively) (operates with numeric names)
-  int (*func10)(void* ctx); // sceIoMkdirForDriver
-  int (*func11)(void* ctx); // sceIoRmdirForDriver
-  int (*func12)(void* ctx); // sceIoDopenForDriver
-  int (*func13)(void* ctx); // sceIoDcloseForDriver
-  int (*func14)(void* ctx); // sceIoDreadForDriver
-  int (*func15)(void* ctx); // sceIoGetstatForDriver or sceIoGetstatByFdForDriver
-  int (*func16)(void* ctx); // sceIoChstatForDriver or sceIoChstatByFdForDriver
-  int (*func17)(void* ctx); // sceIoRenameForDriver
-  int (*func18)(void* ctx); // not implemented by all
-  int (*func19)(void* ctx); // sceIoPreadForDriver
-  int (*func20)(void* ctx); // sceIoPwriteForDriver
-  int (*func21)(void* ctx); // ?
-  int (*func22)(void* ctx); // not referenced
-  int (*func23)(void* ctx); // not referenced
-  int (*func24)(void* ctx); // sceIoSyncForDriver or sceIoSyncByFdForDriver
-  int (*func25)(void* ctx); // sceIoGetstatByFdForDriver
-  int (*func26)(void* ctx); // sceIoChstatByFdForDriver
-  int (*func27)(void* ctx); // ?
-  int (*func28)(void* ctx); // ?
-  int (*func29)(void* ctx); // not implemented by all
-};
-struct vfs_add_data
-{
-    node_ops1* funcs1;
-    const char *name; //exfat etc. max size is 0x20
-    int flags; //0x0E
-    int unk_C; //0x01 / 0x00 (root, leaf ?)
-    int unk_10; //0x10
-    node_ops2* funcs2;
-    int unk_18; //0x00
-    vfs_add_data* next_element; //ptr to next element, confirmed
-};
-//this structure contains device specific data
-//this definition applies only to SceSdif driver
-//it is yet unknown what data is stored by SceExfatfs, ScePfsMgr and SceIofilemgr implementations
-struct vfs_device_info //size is 0xC
-{
-   partition_entry* partition;
-   sd_stor_device* device;
-    uint32_t unk_8;
-} vfs_device_info;
-struct child_node_info
-{
-  vfs_node* node;
-} child_node_info;
-typedef struct vfs_fd_lock
-{
-   SceUID mutex_SceVfsFdLock;
-   SceUID cond_SceVfsFdCond;
     uint32_t unk_8;
     uint32_t unk_C;
+   uint32_t unk_10;
+   uint32_t unk_14;
+   uint32_t unk_18;
+   uint32_t unk_1C;
+   int error; // either error code or 0
+   cond_ctx* next; // 0 means end of list
+} cond_ctx;
-} vfs_fd_lock;
+typedef struct ctx_19D4 {
+    void* unk_0;
-typedef struct vfs_mount_cc
-{
-    uint32_t unk_0;
     uint32_t unk_4;
-    uint32_t unk_8; // pointer to data section, offset 34
+    vfs_node* offset; // Pool of vfs_nodes with 0x1000 elements.
-   uint32_t unk_C; // pointer to data section, offset 1C
+                     // It is used in sceVfsGetNewVnodeForDriver, mount/unmount and node find routines.
-} vfs_mount_cc;
+   uint32_t size;
-typedef struct vfs_mount //size is not known exactly, at least 0xD0 + 0x10 + 0x10
+   uint32_t count;
-{
+   uint32_t unk_14;
-    uint32_t fast_mutex_SceVfsMnt;
+   uint32_t unk_18;
+    uint32_t unk_1C;
+} ctx_19D4;
+typedef struct ctx_11C { //size is 0x220
+   void* unk_0;
     uint32_t unk_4;
-    uint32_t unk_8;
+    void* offset; // pointer to array of byte size 0x10000 with 0x40 elements of size 0x400
-    uint32_t unk_C;
+    uint32_t size;
-    uint8_t data1[0x30];
+    uint32_t count;
-    vfs_node* unk_40; // child ?
+    uint8_t data[0x20C];
+} ctx_11C;
-    SceUID pool;     // 0x44 - SceIoVfsHeap
+typedef struct io_scheduler_dispatcher { //size is 0xB8
+    char unk_0[0x50];
-    uint32_t unk_48; // = 0x101
+    io_scheduler* unk_50; // Internal storage
+   io_scheduler* unk_54; // Gamecard
+   io_scheduler* unk_58; // Removable media (memory card)
+   io_scheduler* unk_5C; // Host File System (host0:)
+   io_scheduler* unk_60; // Default
-    union _devMajor
+    uint32_t unk_64; // pointer to unknown module data section
-   {
+    uint32_t unk_68; // SceIoSchedulerDispatcher fast mutex
-      struct _dmDword
-      {
-         uint32_t unk_4C;
-      } dw;
-      struct _dmWord
-      {
-         uint16_t unk_4C;
-         uint16_t unk_4E;
-      } w;
-      struct _dmByte
-      {
-         uint8_t unk_4C;
-         uint8_t unk_4D;
-         uint8_t unk_4E;
-         uint8_t unk_4F;
-      } b;
-   } devMajor;
-   uint32_t devMinor; // 0x50
-   vfs_node* unk_54;
-    uint32_t unk_58;   // counter
-   vfs_add_data* add_data; // 0x5C
-   uint32_t unk_60;   // counter
-   uint32_t unk_64;
-   uint32_t unk_68;
     uint32_t unk_6C;
+   char unk_70[0x30];
+   uint32_t unk_A0;
+   uint32_t unk_A4;
+   SceUID unk_A8; // SceIoSchedulerDispatcher event flag uid
+   uint32_t unk_AC; // counter
+   uint32_t unk_B0; // flag
+   uint32_t unk_B4; // 0
+} io_scheduler_dispatcher;
-    vfs_mount* unk_70; // next ?
+typedef struct io_scheduler_item { // size is 0x14 - allocated from SceIoScheduler heap
-    vfs_mount* unk_74; // prev ?
+    io_scheduler* unk_0; // parent
+    uint32_t unk_4; // 0
+   uint32_t unk_8; // 0
+   uint32_t unk_C; // 0
+   uint32_t unk_10; // pointer to unknown module data section
+} io_scheduler_item;
-   vfs_mount* unk_78; //singly linked list related to pointer 19D0 in data section
+enum io_device_code {
+  Internal = 0x100,
+  Game_Card = 0x201,
+  Removable = 0x202,
+  Host_File_System = 0x300,
+  Default = 0x0
+};
-   vfs_block_dev_info* blockDev; // 0x7C
+typedef struct io_scheduler { //size is 0xA8 - allocated from SceIoScheduler heap
+    io_device_code unk_0;
-    char unixMount[0x40]; // 0x80 /gro/exfat, /ux/exfat etc
+    io_scheduler_item* unk_4; // item 0
+    io_scheduler_item* unk_8; // item 1
-   uint32_t unk_C0;
+    io_scheduler_item* unk_C; // item 2
-    void* unk_C4; // = mountInfo->unk_14
+    io_scheduler_item* unk_10; // item 3
+    io_scheduler_item* unk_14; // item 4
-    vfs_fd_lock* fd_lock_ptr; // C8 - points to area in this structure
+    io_scheduler_item* unk_18; // item 5
+    io_scheduler_item* unk_1C; // item 6
-    vfs_mount_cc* unk_CC; // CC - points to area in this structure
-   vfs_fd_lock fd_lock; // D0
-    vfs_mount_cc unk_E0; //E0;
-} vfs_mount;
-typedef struct vfs_node_70
-{
-   uint32_t unk_0;
-   uint32_t unk_4;
-   uint32_t unk_8;
-    vfs_node_70* unk_C; //zero or pointer to next element
-    void* unk_10; //pointer to struct of at least size 0x94
-   uint32_t unk_14; //number
-    uint32_t len; // 18
-    char* data; // 1C
-} vfs_node_70;
-struct vfs_node //size is 0x100
-{
-   uint32_t unk_0;
-   uint32_t unk_4;  // most likely SceUID of current thread
-   uint32_t unk_8;  // counter
-   SceUID event_flag_SceVfsVnode; // 0xC - event flag SceVfsVnode
-   uint32_t evid_bits; // 0x10
-   uint32_t unk_14;
-   uint32_t unk_18;
-   uint32_t unk_1C;
-   uint8_t data1[0x20];
-    node_ops2 *ops;  // 0x40
+    io_scheduler_item* unk_20; // item 7
-    uint32_t unk_44;
+    io_scheduler_item* unk_24; // item 8
-    void* dev_info;  //allocated on heap with uid from uid field
+    io_scheduler_item* unk_28; // item 9
-                    //this is device specific / node specific data
+   io_scheduler_item* unk_2C; // item 10
-                    //for partition node this will be vfs_device_info*
+   io_scheduler_item* unk_30; // item 11
-                    //for pfs node it looks like to be child_node_info*
+    io_scheduler_item* unk_34; // item 12
-                    //which probably points to partition node
+    io_scheduler_item* unk_38; // item 13
+    io_scheduler_item* unk_3C; // item 14
-    vfs_mount* node; // 0x4C
+    io_scheduler_item* unk_40; // item 15
-    vfs_node* prev_node; // 0x50
+    uint32_t unk_44; // flag1 0x40000 or 0x00
+    uint32_t unk_48; // flag2 0x40000 or 0x00
-    vfs_node* unk_54; // copied from node base
+    io_scheduler_dispatcher* unk_4C; // parent
-    uint32_t unk_58;  // counter - probably counter of nodes
-    uint32_t unk_5C;
+    SceUID unk_50; // SceIoScheduler mutex
+    SceUID unk_54; // SceIoScheduler cond
-    uint32_t unk_60;
-   uint32_t unk_64;
+    char unk_58; // 0
-   uint32_t unk_68;
+    char unk_59; // 0
-   SceUID pool_uid;  // 0x6C - SceIoVfsHeap or other pool
+    char unk_5A; // 0
+    char unk_5B; // 0
-   vfs_node_70* unk_70;
-    uint32_t unk_74; // = 0x8000
-    uint32_t unk_78; // some flag
-    uint32_t unk_7C;
-    uint32_t unk_80;
-    uint32_t unk_84;
-   uint32_t unk_88;
-    uint32_t unk_8C;
-    uint32_t unk_90;
-    uint32_t unk_94;
-    vfs_node* unk_98; //some child node
-    uint32_t unk_9C;
-   uint8_t data2[0x30];
-    uint32_t unk_D0; // devMajor.w.unk_4E
+    uint32_t unk_5C; // 0
-    uint8_t data3[0x2C];
+    // this is probably a separate structure
+    SceUID unk_60; // SceIoSchedWorker thread id
-}vfs_node;
+    SceUID unk_64; // SceIoScheduler mutex from self
+    SceUID unk_68; // SceIoScheduler cond from self
-struct vfs_node_info //size is 0x38
+    io_scheduler* unk_6C; // pointer to self
-{
-   char name[0x20];
+    uint32_t unk_70; // 0
-    vfs_node* node; //can be zero
+    uint16_t unk_74; // 0
-    uint32_t unk_24; // probably size of vfs_node
+   uint16_t unk_76; // 0
-    uint32_t unk_28; // probably flags
+   uint32_t unk_78; // 0
-    vfs_node_info* unk_2C; //can be zero
+   uint32_t unk_7C; // 0
-    vfs_node_info* unk_30; //can be zero
-    vfs_node_info* unk_34; //can be zero
+   uint32_t unk_80; //
-}vfs_node_info;
+   uint32_t unk_84; // some flag
-//looks like this structure is used to get some response into "error" field
+    uint32_t unk_88; //0x80
-//when executing sceKernelSignalCondTo calls
+    uint32_t unk_8C; //0x80
-//this structure is used by SceIofileDaemon when it monitors mount/unmount async requests
-//in SceIofilemgrMount thread using SceIofilemgrMount conditional variable
+    uint32_t unk_90; //0x80
-//upon completion it issues the signal and result of operation is stored in error field
+    uint32_t unk_94; //0x80
-//it looks like operations 1/2 are used for normal filesystems
+    uint32_t unk_98; //0x80
-//operations 3/4 are used for PFS_GDSD_INF filesystem
+    uint32_t unk_9C; //0x80
-typedef struct cond_ctx
-{
+    uint32_t unk_A0; // 0
-    uint32_t op_index; //operation index. 1,3 - mount. 2,4 - unmount
+    uint32_t unk_A4; // 0
-    uint32_t unk_4;
-    uint32_t unk_8;
-    uint32_t unk_C;
-    uint32_t unk_10;
-    uint32_t unk_14;
-    uint32_t unk_18;
-    uint32_t unk_1C;
-    int error; //either error code or 0
-    cond_ctx* next; //0 means end of list
-} cond_ctx;
-typedef struct ctx_19D4
+} io_scheduler;
-{
-   void* unk_0;
-   uint32_t unk_4;
-   vfs_node* offset; // pool of vfs_nodes with 0x1000 elements.
-                     // it is used in sceVfsGetNewNode, mount/unmount and node find routines
-   uint32_t size;
-   uint32_t count;
+// Context used for dispatching i/o operations
-   uint32_t unk_14;
+typedef struct io_context { // size is 0xB8 on FW 3.60
-   uint32_t unk_18;
+    uint32_t unk_0;
-   uint32_t unk_1C;
-}ctx_19D4;
-typedef struct ctx_11C //size is 0x220
-{
-    void* unk_0;
     uint32_t unk_4;
-    void* offset; // pointer to array of byte size 0x10000 with 0x40 elements of size 0x400
+    uint32_t unk_8;
-    uint32_t size;
+    uint32_t unk_C;
-    uint32_t count;
+    uint16_t unk_10;
+   uint16_t unk_12;
-    uint8_t data[0x20C];
+    uint16_t unk_14;
-}ctx_11C;
+   uint16_t unk_16;
+   void *data_0; // 0x18
-typedef struct io_scheduler_dispatcher //size is 0xB8
+   uint32_t unk_1C; // 0x1C
-{
-    char unk_0[0x50];
+    SceSize size_0; // 0x20
+   uint32_t io_op_index; // 0x24
-    io_scheduler* unk_50; // Internal
+   uint32_t ioctlOutdata0; // 0x28
-    io_scheduler* unk_54; // Game Card
+    io_device_code device_code; // 0x2C, ioctlOutdata1
-    io_scheduler* unk_58; // Removable
-    io_scheduler* unk_5C; // Host File System
+    char async; // 0x30
-    io_scheduler* unk_60; // Default
+    char unk_31;
+   char unk_32;
+   char unk_33;
+   SceUID pid; // 0x34, sceKernelGetProcessIdForDriver
+    SceUID threadId; // 0x38, sceKernelGetThreadIdForDriver
+    SceUID tlsPid; // 0x3C, sceKernelGetProcessIdFromTLSForDriver
-    uint32_t unk_64; // pointer to unknown module data section
+    uint32_t unk_40; // 0x40, SceThreadmgrForDriver_332E127C
-    uint32_t unk_68; //SceIoSchedulerDispatcher fast mutex
+    uint32_t cpuMask; // 0x44, sceKernelGetThreadCpuAffinityMaskForDriver
-    uint32_t unk_6C;
+    uint32_t threadPriority; // 0x48, sceKernelGetThreadCurrentPriorityForDriver
+   void* list0; // 0x4C, pointer to some linked list with elements of size 0x14
-    char unk_70[0x30];
+    uint32_t listSize; // 0x50, number of items in linst
+   void* list1; // 0x54, pointer to some linked list with elements of size 0x14
+   uint32_t sizeOfList; // 0x58, size of list in bytes
+   uint16_t state; // 0x5C, bit 16 of state where state = (MRC p15, 0, state, c13, c0, 3)
+   uint16_t unk_5E; // 0x5E
-    uint32_t unk_A0;
+    uint32_t unk_60; // 0x60
-    uint32_t unk_A4;
+   SceUID fd; // 0x64
+   void *data_1; // 0x68
+    uint32_t unk_6C;
-    SceUID unk_A8; //SceIoSchedulerDispatcher event flag uid
+    SceSize size_1; // 0x70
-    uint32_t unk_AC; // counter
+    uint32_t unk_74; // 0x74
-    uint32_t unk_B0; // flag
+    uint32_t unk_78; // 0x78, -1
-    uint32_t unk_B4; // 0
+    uint32_t unk_7C; // 0x7C, -1
-} io_scheduler_dispatcher;
+   uint32_t op_result; // 0x80, result of i/o operation
+   uint32_t unk_84;
+   void* unk_88;
+   uint32_t unk_8C;
+   uint32_t unk_90;
+   uint32_t unk_94;
+   uint32_t unk_98;
+   uint32_t unk_9C;
+   uint32_t unk_A0;
+   uint32_t unk_A4;
+   uint32_t unk_A8;
+   uint32_t unk_AC;
+   SceUInt64 sytemTimeWide; // 0xB0, sceKernelGetSystemTimeWideForDriver
+} io_context;
+typedef struct _SceVfsFileObject_0995 { //SceVfsFileClass object - size is 0x40 on 0.995
+  /* SceKernelObject header not included in size nor structure */
+  SceInt32 unk_0x0;
+  SceInt32 unk_0x4;
+  SceInt64 unk_0x8;
+  SceInt32 unk_0x10; //Set to 1 during sceVfsAllocateFile
+  ScePID creator_pid; //Result of sceKernelGetProcessIdFromTLS() during sceVfsAllocateFile
+  void* unk_0x18; //Pointer provided as a1 to sceVfsAllocateFile
+  SceUIDVfsFileObject* next; //Pointer to next file in linked list - list head is in a1
+  SceInt32 unk_0x20;
+  SceInt16 unk_0x24;
+  char unk_0x26; //unused?
+  SceInt8 unk_0x27;
+  SceInt32 unk_0x28; //comes from a1->0x4C->0xC8
+  SceInt32 unk_0x2C; //((a1->0x4C->0x50 & 0x20000) << 1) | (a1->0x4C->0x50 & 0x10000)
+  SceInt32 unk_0x30;
+  char unk_0x34; //unused?
+  SceInt8 unk_0x35;
+  SceInt8 unk_0x36;
+  SceInt8 unk_0x37;
+  SceInt8 unk_0x38;
+  SceInt8 unk_0x39;
+  SceInt8 unk_0x3A;
+  SceInt8 unk_0x3B;
+  SceInt8 unk_0x3C;
+  SceInt8 unk_0x3D;
+  SceInt8 unk_0x3E;
+  SceInt8 unk_0x3F;
+} SceUIDVfsFileObject_0995;
+typedef struct _SceUIDVfsFileObject { //SceUIDVfsFileClass object - size is 0x48 on 3.60
+  /* SceKernelObject header not included in size nor structure */
+  SceInt32 unk_0x0;
+  SceInt32 unk_0x4;
+  SceInt64 unk_0x8;
+  SceInt32 unk_0x10; //Set to 1 during sceVfsAllocateFile
+  ScePID creator_pid; //Result of sceKernelGetProcessIdFromTLS() during sceVfsAllocateFile
+  void* unk_0x18; //Pointer provided as a1 to sceVfsAllocateFile
+  SceUIDVfsFileObject* next; //Pointer to next file in linked list - list head is in a1
+  SceInt32 unk_0x20; //Zero'ed in constructor
+  SceInt16 unk_0x24;
+  char unk_0x26; //unused?
+  SceInt8 unk_0x27;
+  SceInt32 unk_0x28; //comes from a1->0x4C->0xC8
+  SceInt32 unk_0x2C; //((a1->0x4C->0x50 & 0x20000) << 1) | (a1->0x4C->0x50 & 0x10000)
+  SceInt32 unk_0x30;
+  char unk_0x34; //unused?
+  SceInt8 unk_0x35;
+  SceInt8 unk_0x36;
+  SceInt8 unk_0x37;
+  SceInt8 unk_0x38; //Zero'ed during constructor
+  SceInt8 unk_0x39; //^ doing *(SceInt32*)(&file->unk_0x38) = 0;
+  SceInt8 unk_0x3A; //^
+  SceInt8 unk_0x3B; //^
+  SceInt8 unk_0x3C;
+  SceInt8 unk_0x3D;
+  SceInt8 unk_0x3E;
+  SceInt8 unk_0x3F;
+  char unk_0x40[8]; //unknown type - haven't seen this used yet
+} SceUIDVfsFileObject;
-typedef struct io_scheduler_item //size is 0x14 - allocated from SceIoScheduler heap
+typedef struct SceVfsPath { //size is 0xC-bytes
-{
+	char *name; // could be `const char *`?
-   io_scheduler* unk_0; // parent
+	SceSize name_len;
-   uint32_t unk_4; // 0
+	char *path; // could be `const char *`?
-   uint32_t unk_8; // 0
+} SceVfsPath;
-   uint32_t unk_C; // 0
+</source>
-   uint32_t unk_10; // pointer to unknown module data section
-}io_scheduler_item;
-enum io_device_code
+== Data segment layout ==
-{
-  Internal = 0x100,
-  Game_Card = 0x201,
-  Removable = 0x202,
-  Host_File_System = 0x300,
-  Default = 0x0
-};
-typedef struct io_scheduler //size is 0xA8 - allocated from SceIoScheduler heap
+{| class="wikitable"
-{
+|-
-   io_device_code unk_0;
+! Address !! Size !! Description
-   io_scheduler_item* unk_4; //item 0
+|-
-   io_scheduler_item* unk_8; //item 1
+| 0x0000 || 0x4 || unknown
-   io_scheduler_item* unk_C; //item 2
+|-
+| 0x0004 || 0x8 || some index returned from initialization function 0xb645c7ef in SceThreadmgrForDriver
-   io_scheduler_item* unk_10; //item 3
+|-
-   io_scheduler_item* unk_14; //item 4
+| 0x0008 || 0x4 || unknown
-   io_scheduler_item* unk_18; //item 5
+|-
-   io_scheduler_item* unk_1C; //item 6
+| 0x000C || 0x4 || flag that enables usage of sceFiosKernel functions (like OverlayResolveSync) in i/o operations in transition from user to kernel
+|-
-   io_scheduler_item* unk_20; //item 7
+| 0x00010 || 0x4 || flag that enables usage of sceFiosKernel functions (like OverlayResolveSync) in i/o operations in transition from user to kernel
-   io_scheduler_item* unk_24; //item 8
+|-
-   io_scheduler_item* unk_28; //item 9
+| 0x00014 || 0x4 || flag that enables usage of sceFiosKernel functions (like OverlayResolveSync) in i/o operations in transition from user to kernel
-   io_scheduler_item* unk_2C; //item 10
+|-
+| 0x00018 || 0x4 || flag that enables usage of sceFiosKernel functions (like OverlayResolveSync) in i/o operations in transition from user to kernel
-   io_scheduler_item* unk_30; //item 11
+|-
-   io_scheduler_item* unk_34; //item 12
+| 0x0001C || 0x4 || unknown
-   io_scheduler_item* unk_38; //item 13
+|-
-   io_scheduler_item* unk_3C; //item 14
+| 0x0020 || 0x4 || <code>SceIofileDevWaitForVC</code> event flag SceUID
-   io_scheduler_item* unk_40; //item 15
+|-
+| 0x0024 || 0x4 || unknown
-   uint32_t unk_44; // flag1 0x40000 or 0x00
+|-
-   uint32_t unk_48; // flag2 0x40000 or 0x00
+| 0x0028 || 0x4 || <code>SceIofileDevWaitForSD</code> event flag SceUID
-   io_scheduler_dispatcher* unk_4C; // parent
+|-
+| 0x002C || 0x4 || pointed by <code>vfs_mount_cc</code> for <code>SceIofileDevWaitForSD</code>
-   SceUID unk_50; //SceIoScheduler mutex
+|-
-   SceUID unk_54; //SceIoScheduler cond
+| 0x0030 || 0x4 || <code>SceIofileDevWaitForMC</code> event flag SceUID
+|-
-   char unk_58; // 0
+| 0x0034 || 0x4 || unknown
-   char unk_59; // 0
+|-
-   char unk_5A; // 0
+| 0x0038 || 0x4 || pointed by <code>vfs_mount_cc</code> for <code>SceIofileDevWaitForVC</code>
-   char unk_5B; // 0
+|-
+| 0x003C || 0x4 || pointed by <code>vfs_mount_cc</code> for <code>SceIofileDevWaitForMC</code>
-   uint32_t unk_5C; // 0
+|-
+| 0x0040 || 0x10 || unknown
-   //this is probably separate structure
+|-
-   SceUID unk_60; //SceIoSchedWorker thread id
+| 0x0050 || 0x4 || address of some callback function called in all vfs operations
-   SceUID unk_64; //SceIoScheduler mutex from self
+|-
-   SceUID unk_68; //SceIoScheduler cond from self
+| 0x0054 || 0x4 || <code>SceIofile</code> heap SceUID
-   io_scheduler* unk_6C; //pointer to self
+|-
+| 0x0058 || 0x80 || unknown
-   uint32_t unk_70; // 0
+|-
-   uint16_t unk_74; // 0
+| 0x00D8 || 0x4 || <code>SceIoVfsHeap</code> heap SceUID
-   uint16_t unk_76; // 0
+|-
-   uint32_t unk_78; // 0
+| 0x00DC || 0x4 || <code>SceIoFileDebug</code> memblock SceUID
-   uint32_t unk_7C; // 0
+|-
+| 0x00E0 || 0x3C || unknown
-   uint32_t unk_80; //
+|-
-   uint32_t unk_84; // some flag
+| 0x011C || 0x4 || ctx_11C* pointer to structure
+|-
-   uint32_t unk_88; //0x80
+| 0x0120 || 0x4C || unknown
-   uint32_t unk_8C; //0x80
+|-
+| 0x016C || 0x10 || char* static_buffers[4] - static buffers used instead of SceIoVfsHeap
-   uint32_t unk_90; //0x80
+|-
-   uint32_t unk_94; //0x80
+| 0x017C || 0x2C || <code>SceClass</code> for SceVfsFile
-   uint32_t unk_98; //0x80
+|-
-   uint32_t unk_9C; //0x80
+| 0x01A8 || 0x1500 || array of 96 elements of vfs_node_info
-   uint32_t unk_A0; // 0
-   uint32_t unk_A4; // 0
-}io_scheduler;
-//context that is used for dispatching i/o operations
-typedef struct io_context //size is 0xB8
-{
-   uint32_t unk_0;
-   uint32_t unk_4;
-   uint32_t unk_8;
-   uint32_t unk_C;
-   uint32_t unk_10;
-   uint32_t unk_14;
-   uint32_t unk_18;
-   uint32_t unk_1C;
-   uint32_t unk_20;
-   uint32_t io_op_index; // 0x24 - check "i/o operation index" section
-   uint32_t unk_28;
-   io_device_code device_code; // 0x2C
-   char async; //0x30
-   char unk_31;
-   char unk_32;
-   char unk_33
-   uint32_t pid; //0x34 = ksceKernelGetProcessId
-   uint32_t tid; //0x38 = ksceKernelGetThreadId
-   uint32_t unk_3C; // = SceThreadmgrForDriver_fa54d49a
-   uint32_t unk_40; // = SceThreadmgrForDriver_332e127c
-   uint32_t cpu_mask; // 0x44 = ksceKernelGetThreadCpuAffinityMask
-   uint32_t thread_priority; //0x48 = ksceKernelGetThreadCurrentPriority
-   uint32_t unk_4C;
-   uint32_t unk_50;
-   uint32_t unk_54;
-   uint32_t unk_58;
-   uint16_t state; // 0x5C = bit 16 of state where state = (MRC p15, 0, state, c13, c0, 3)
-   uint16_t unk_5E;
-   uint32_t unk_60;
-   uint32_t unk_64;
-   uint32_t unk_68;
-   uint32_t unk_6C;
-   uint32_t unk_70;
-   uint32_t unk_74;
-   uint32_t unk_78; // = -1
-   uint32_t unk_7C; // = -1
-   uint32_t op_result; // 0x80 - result of i/o operation
-   uint32_t unk_84;
-   void* unk_88;
-   uint32_t unk_8C;
-   uint32_t unk_90;
-   uint32_t unk_94;
-   uint32_t unk_98;
-   uint32_t unk_9C;
-   uint32_t unk_A0;
-   uint32_t unk_A4;
-   uint32_t unk_A8;
-   uint32_t unk_AC;
-   uint64_t unk_B0; // = ksceKernelGetSystemTimeWide
-}io_context;
-</source>
-== Data segment layout ==
-{| class="wikitable"
 |-
-! Address !! Size !! Description
+| 0x16A8 || 0x4 || <code>SceVfsRfsLock</code> fast mutex
 |-
-| 0x0000 || 0x4 || unknown
+| 0x16AC || 0x3C || unknown
 |-
-| 0x0004 || 0x8 || pointer to <code>SceIofile</code> heap SceUID at offset 0x54
+| 0x16E8 || 0x2C || <code>SceClass</code> for SceIoMountEvent
 |-
-| 0x0008 || 0x4 || unknown
+| 0x1714 || 0xC || unknown
 |-
-| 0x000C || 0x4 || flag that enables usage of sceFiosKernel functions (like OverlayResolveSync) in i/o operations in transition from user to kernel
+| 0x1720 || 0x04 || cond_ctx* pointer to the linked list
 |-
-| 0x00010 || 0x4 || flag that enables usage of sceFiosKernel functions (like OverlayResolveSync) in i/o operations in transition from user to kernel
+| 0x1724 || 0x4 || <code>SceIoScheduler</code> heap SceUID
 |-
-| 0x00014 || 0x4 || flag that enables usage of sceFiosKernel functions (like OverlayResolveSync) in i/o operations in transition from user to kernel
+| 0x1728 || 0xB8 || <code>io_scheduler_dispatcher</code> structure
 |-
-| 0x00018 || 0x4 || flag that enables usage of sceFiosKernel functions (like OverlayResolveSync) in i/o operations in transition from user to kernel
+| 0x17E0 || 0x2C || <code>SceClass</code> for SceIoAsyncEvent - used in all async i/o operations
 |-
-| 0x0001C || 0x4 || unknown
+| 0x180C || 0xC || unknown
 |-
-| 0x0020 || 0x4 || <code>SceIofileDevWaitForVC</code> event flag SceUID
+| 0x1818 || 0x2C || <code>SceClass</code> for SceIoErrorEvent
 |-
-| 0x0024 || 0x4 || unknown
+| 0x1844 || 0xC || unknown
 |-
-| 0x0028 || 0x4 || <code>SceIofileDevWaitForSD</code> event flag SceUID
+| 0x1850 || 0x4 || <code>SceIofileDaemonLock</code> fast mutex
 |-
-| 0x002C || 0x4 || unknown
+| 0x1854 || 0x40 || unknown
 |-
-| 0x0030 || 0x4 || <code>SceIofileDevWaitForMC</code> event flag SceUID
+| 0x1894 || 0x4 || <code>SceIofile</code> fast mutex
 |-
-| 0x0034 || 0x1C || unknown
+| 0x1898 || 0x7C || unknown
 |-
-| 0x0050 || 0x4 || address of some callback function called in all vfs operations
+| 0x1914 || 0x4 || function pointer t_1914_callback
 |-
-| 0x0054 || 0x4 || <code>SceIofile</code> heap SceUID
+| 0x1918 || 0x4 || <code>SceIofileFlock</code> fast mutex
 |-
-| 0x0058 || 0x80 || unknown
+| 0x191C || 0x44 || unknown
 |-
-| 0x00D8 || 0x4 || <code>SceIoVfsHeap</code> heap SceUID
+| 0x1960 || 0x4 || some i/o flag
 |-
-| 0x00DC || 0x4 || <code>SceIoFileDebug</code> memblock SceUID
+| 0x1964 || 0x4 || flag that indicates that any i/o operation happened 1/0. changed by each i/o operation. cleared on suspend.
 |-
-| 0x00E0 || 0x3C || unknown
+| 0x1968 || 0x18 || unknown
 |-
-| 0x011C || 0x4 || ctx_11C* pointer to structure
+| 0x1980 || 0x4 || counter of not finished i/o operations. changed by each i/o operation.
 |-
-| 0x0120 || 0x4C || unknown
+| 0x1984 || 0xC || unknown
 |-
-| 0x016C || 0xC || structure used together with 19F8
+| 0x1990 || 0x4 || <code>SceVfsMntlistLock</code> fast mutex
 |-
-| 0x0178 || 0x30 || unknown
+| 0x1994 || 0x3C || unknown
 |-
-| 0x01A8 || 0x1500 || array of 96 elements of vfs_node_info
+| 0x19D0 || 0x4 || vfs_mount* singly linked list
 |-
-| 0x16A8 || 0x4 || <code>SceVfsRfsLock</code> fast mutex
+| 0x19D4 || 0x1C || structure ctx_19D4
 |-
-| 0x16AC || 0x74 || unknown
+| 0x19F0 || 0x8 || unknown
 |-
-| 0x1720 || 0x04 || cond_ctx* pointer to the linked list
+| 0x19F8 || 0x4 || address used for sceKernelCpuLockSuspendIntrStoreLRForDriver to lock 016C
 |-
-| 0x1724 || 0x4 || <code>SceIoScheduler</code> heap SceUID
+| 0x19FC || 0x4 || vfs_mount* pointer
 |-
-| 0x1728 || 0xB8 || <code>io_scheduler_dispatcher</code> structure
+| 0x1A00 || 0x4 || <code>SceVfsNcacheLock</code> fast mutex
 |-
-| 0x17E0 || 0x70 || unknown
+| 0x1A04 || 0x40 || unknown
 |-
-| 0x1850 || 0x4 || <code>SceIofileDaemonLock</code> fast mutex
+| 0x1A44 || 0x4 || address used for sceKernelCpuLockSuspendIntrStoreLRForDriver
 |-
-| 0x1854 || 0x40 || unknown
+| 0x1A48 || 0x4 || unknown
 |-
-| 0x1894 || 0x4 || <code>SceIofile</code> fast mutex
+| 0x1A4C || 0x4 || <code>SceVfsLock</code> fast mutex
 |-
-| 0x1898 || 0x80 || unknown
+| 0x1A50 || 0x3C || unknown
 |-
-| 0x1918 || 0x4 || <code>SceIofileFlock</code> fast mutex
+| 0x1A8C || 0x04 || <code>SceIofilemgrMount</code> thread SceUID
 |-
-| 0x191C || 0x44 || unknown
+| 0x1A90 || 0x700 || array of 32 elements of vfs_mount_point_info
 |-
-| 0x1960 || 0x4 || some i/o flag
+| 0x2190 || 0x4 || <code>SceIofilemgrMount</code> cond SceUID
 |-
-| 0x1964 || 0x4 || flag that indicates that any i/o operation happened 1/0. changed by each i/o operation. cleared on suspend.
+| 0x2194 || 0x4 || <code>SceIofilemgrMount</code> SceUID mutexid
 |-
-| 0x1968 || 0x18 || unknown
+| 0x2198 || 0x4 || flag that indicates that IoSchedulerDispatcher functionality is initialized 1/0
 |-
-| 0x1980 || 0x4 || counter of not finished i/o operations. changed by each i/o operation.
+| 0x219C || 0x4 || unknown
 |-
-| 0x1984 || 0xC || unknown
+| 0x21A0 || 0x40 || unknown
 |-
-| 0x1990 || 0x4 || <code>SceVfsMntlistLock</code> fast mutex
+| 0x21E0 || 0x20 || unknown
 |-
-| 0x1994 || 0x3C || unknown
+| 0x2200 || 0x04 || <code>SceIofilemgrDaemon</code> thread SceUID
 |-
-| 0x19D0 || 0x4 || vfs_mount* singly linked list
+| 0x2204 || 0x8 || unknown
 |-
-| 0x19D4 || 0x1C || structure ctx_19D4
+| 0x220C || 0x4 || <code>SceIofilemgrDaemon</code> event flag SceUID
 |-
-| 0x19F0 || 0x8 || unknown
+| 0x2210 || 0x4 || void* to heap alloc of size 0x100
 |-
-| 0x19F8 || 0x4 || address used for ksceKernelCpuSuspendIntr
+| 0x2214 || 0x4 || void* to heap alloc of size 0x100
 |-
-| 0x19FC || 0x4 || unknown
+| 0x2218 || 0x4 || = 3
 |-
-| 0x1A00 || 0x4 || <code>SceVfsNcacheLock</code> fast mutex
+| 0x221C || 0x20 || [[SceIofilemgr#sceVfsAddVfsForDriver|vfs_add_data]] <code>dummy_ttyp_dev_fs</code> node
 |-
-| 0x1A04 || 0x40 || unknown
+|}
+== SceIofilemgrForDriver ==
+=== sceVfsOpDevctlForDriver ===
+{| class="wikitable"
 |-
-| 0x1A44 || 0x4 || address used for ksceKernelCpuSuspendIntr
+! Version !! NID
 |-
-| 0x1A48 || 0x4 || unknown
+| 0.990-3.60 || 0xB07B307D
+|}
+=== sceVfsOpDecodePathElemForDriver ===
+{| class="wikitable"
 |-
-| 0x1A4C || 0x4 || <code>SceVfsLock</code> fast mutex
+! Version !! NID
 |-
-| 0x1A50 || 0x3C || unknown
+| 0.990-3.60 || 0xF7DAC0F5
+|}
+=== sceVopOpenForDriver ===
+{| class="wikitable"
 |-
-| 0x1A8C || 0x04 || <code>SceIofilemgrMount</code> thread SceUID
+! Version !! NID
 |-
-| 0x1A90 || 0x700 || array of 32 elements of vfs_mount_point_info
+| 0.990-3.60 || 0x76B79BEC
+|}
+=== sceVopCreateForDriver ===
+{| class="wikitable"
 |-
-| 0x2190 || 0x4 || <code>SceIofilemgrMount</code> cond SceUID
+! Version !! NID
 |-
-| 0x2194 || 0x4 || SceUID mutexid
+| 0.990-3.60 || 0x9E347C7D
+|}
+=== sceVopCloseForDriver ===
+{| class="wikitable"
 |-
-| 0x2198 || 0x4 || flag that indicates that IoSchedulerDispatcher functionality is initialized 1/0
+! Version !! NID
-|-
-| 0x219C || 0x4 || unknown
-|-
-| 0x21A0 || 0x40 || unknown
-|-
-| 0x21E0 || 0x20 || unknown
-|-
-| 0x2200 || 0x04 || <code>SceIofilemgrDaemon</code> thread SceUID
-|-
-| 0x2204 || 0x8 || unknown
-|-
-| 0x220C || 0x4 || <code>SceIofilemgrDaemon</code> event flag SceUID
-|-
-| 0x2210 || 0x4 || void* to heap alloc of size 0x100
-|-
-| 0x2214 || 0x4 || void* to heap alloc of size 0x100
-|-
-| 0x2218 || 0x4 || = 3
-|-
-| 0x221C || 0x20 || [[SceIofilemgr#sceVfsAddVfs|vfs_add_data]] <code>dummy_ttyp_dev_fs</code> node
 |-
+| 0.990-3.60 || 0x40944C2E
 |}
-== SceIofilemgrForDriver ==
+In logs it is sceVopClsoe.
-=== sceIoMountForDriver ===
+=== sceVopLookupForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 0.931-3.60 || 0xA5A6A55C
-| 0xD070BC48
 |}
-operation index 1 in <code>cond_ctx</code>
+Temp name was sceVfsNodeInitializePartitionForDriver.
-<source lang="c">
+<source lang="C">int sceVopLookupForDriver(SceVfsNode *pNode, SceVfsNode **ppNewNode, SceVfsPath *path_info, SceUInt32 flags);</source>
-//intermediate function between sceAppMgrGameDataMountForDriver and sceVfsMount
-int sceIoMountForDriver(int vshMountId);
-</source>
-=== sceIoUmountForDriver ===
+=== sceVopReadForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 0.990-3.60 || 0x570388A5
-| 0x20574100
 |}
-operation index 2 in <code>cond_ctx</code>
+=== sceVopWriteForDriver ===
-<source lang="c">
-//intermediate function between sceAppMgrUmountForDriver and sceVfsUnmount
-int sceIoUmountForDriver(int vshMountId, int unk1, int unk2, int unk3);
-</source>
-=== scePfsMgrVfsMountForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 0.990-3.60 || 0x9A68378D
-| 0xFEEE44A9
 |}
-operation index 3 in <code>cond_ctx</code>
+=== sceVopLseekForDriver ===
-<source lang="c">
-//this function can be used with PFS_GDSD_INF filesystem
-int scePfsMgrVfsMountForDriver(int unk0, int unk1, int unk2);
-</source>
-=== scePfsMgrVfsUmountForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 0.990-3.60 || 0xB2B13818
-| 0xD220539D
 |}
-operation index 4 in <code>cond_ctx</code>
+=== sceVopIoctlForDriver ===
-<source lang="c">
-int scePfsMgrVfsUmountForDriver(int unk0, int unk1, int unk2);
-</source>
-=== sceVfsNodeWaitEventFlag ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 0.990-3.60 || 0x333C904D
-| 0xAA45010B
 |}
-calls <code>ksceKernelWaitEventFlag</code> using <code>event_flag_SceVfsVnode</code> from <code>vfs_node</code>
+=== sceVopRemoveForDriver ===
-<source lang="C">int sceVfsNodeWaitEventFlag(vfs_node* node)</source>
-=== sceVfsNodeSetEventFlag ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0xDC1E7EE4
-| 0x6048F245
 |}
-calls <code>ksceKernelSetEventFlag</code> using <code>event_flag_SceVfsVnode</code> from <code>vfs_node</code>
+=== sceVopMkdirForDriver ===
-<source lang="C">int sceVfsNodeSetEventFlag(vfs_node* node)</source>
-=== sceVfsUnmount ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
-|-
-| 1.69
-| 0x9C7E7B76
 |-
-| 3.60
+| 0.990-3.60 || 0x2F3F8C70
-| 0x9C7E7B76
 |}
-<source lang="c">
-struct vfs_unmount_data
-{
-    const char *mountpoint;
-    int flags;
-};
-int sceVfsUnmount(struct vfs_unmount_data *data);
-</source>
-=== sceVfsDeleteVfs ===
+=== sceVopRmdirForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
-|-
-| 1.69
-| 0x9CBFA725
 |-
-| 3.60
+| 0.990-3.60 || 0x1D551105
-| 0x9CBFA725
 |}
-<source lang="c">
-int sceVfsDeleteVfs(const char *name, void **deleted_node);
-</source>
-=== sceVfsAddVfs ===
+=== sceVopDopenForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
-|-
-| 1.69
-| 0x673D2FCD
 |-
-| 3.60
+| 0.990-3.60 || 0x00C9C2DD
-| 0x673D2FCD
 |}
-<source lang="c">
-int sceVfsAddVfs(struct vfs_add_data *data);
-</source>
-=== sceVfsMount ===
+=== sceVopDcloseForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
-|-
-| 1.69
-| 0xB62DE9A6
 |-
-| 3.60
+| 0.990-3.60 || 0x1350F5C7
-| 0xB62DE9A6
 |}
-<source lang="c">
-int sceVfsMount(struct vfs_mount_point_info_base* data);
-</source>
-=== sceVfsGetNewNode ===
+=== sceVopDreadForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 1.69
+| 0.990-3.60 || 0x77584C8F
-| 0xD60B5C63
-|-
-| 3.60
-| 0xD60B5C63
 |}
-<source lang="c">
-int sceVfsGetNewNode(vfs_mount* mount, node_ops2 *ops, int unused, vfs_node **node);
-</source>
-=== sceIoDreadForDriver ===
+=== sceVopGetstatForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
-|-
-| 1.69
-| 0x20CF5FC7
 |-
-| 3.60
+| 0.990-3.60 || 0x50A63ACF
-| 0x20CF5FC7
 |}
-Call interface is same as <code>sceIoDread</code>
-<source lang="C">int sceIoDreadForDriver(SceUID fd, SceIoDirent *dir);</source>
-=== sceIoDreadForDriver_2 ===
+=== sceVopChstatForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 0.990-3.60 || 0x1974FA92
-| 0x03051B02
 |}
-Derived from i/o dispatcher, not from user function
+=== sceVopRenameForDriver ===
-Implementation is completely the same as sceIoDreadForDriver. The only difference is that st_attr in SceIoStat is not set.
-<source lang="C">int sceIoDreadForDriver_2(SceUID fd, SceIoDirent *dir);</source>
-=== sceIoWriteForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 1.69
+| 0.990-3.60 || 0x36A794C7
-| 0x21EE91F0
-|-
-| 3.60
-| 0x21EE91F0
 |}
-Call interface is same as <code>sceIoWrite</code>
-<source lang="C">int sceIoWriteForDriver(SceUID fd, const void *data, SceSize size);</source>
-=== sceIoDopenForDriver ===
+=== sceVopPreadForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
-|-
-| 1.69
-| 0x463B25CC
 |-
-| 3.60
+| 0.990-3.60 || 0xABBC80E3
-| 0x463B25CC
 |}
-Call interface is same as <code>sceIoDopen</code>
-<source lang="C">SceUID sceIoDopenForDriver(const char *dirname);</source>
-=== sceIoLseekForDriver ===
+=== sceVopPwriteForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
-|-
-| 1.69
-| 0x62090481
 |-
-| 3.60
+| 0.990-3.60 || 0xA53C040D
-| 0x62090481
 |}
-Call interface is same as <code>sceIoLseek</code>
-<source lang="C"> SceOff sceIoLseekForDriver(SceUID fd, SceOff offset, int whence);</source>
-=== sceIoOpenForDriver ===
+=== sceVopInactiveForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 1.69
+| 0.990-3.60 || 0x8FB94521
-| 0x75192972
+|}
+=== sceVopLinkForDriver ===
+{| class="wikitable"
 |-
-| 3.60
+! Version !! NID
-| 0x75192972
+|-
+| 3.60 || 0x942AA61F
 |}
-Call interface is same as <code>sceIoOpen</code>
-<source lang="C">SceUID sceIoOpenForDriver(const char *file, int flags, SceMode mode);</source>
+Temp name was sceVop_unk_offset_0x54_ForDriver.
-=== sceIoOpenForDriver_2 ===
+=== sceVopUnlinkForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0x0D8A806E
-| 0xC3D34965
 |}
-This is a wrapper for <code>sceIoOpenForDriver</code>
+Temp name was sceVop_unk_offset_0x58_ForDriver.
-Pid is used for <code>sceFiosKernelOverlayResolveSyncForDriver</code>
+=== sceVopSyncForDriver ===
-<source lang="C">SceUID sceIoOpenForDriver_2(SceUID pid, const char *file, int flags, SceMode mode);</source>
-=== sceIoChstatForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
-|-
-| 1.69
-| 0x7D42B8DC
 |-
-| 3.60
+| 0.990-3.60 || 0x9CD96406
-| 0x7D42B8DC
 |}
-Call interface is same as <code> sceIoChstat </code>
-<source lang="C">int sceIoChstatForDriver(const char *file, SceIoStat *stat, int bits);</source>
-=== sceIoChstatForDriver_2 ===
+=== sceVopFgetstatForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0x1DBCBB01
-| 0x1F98BD50
 |}
-Derived from i/o dispatcher, not from user function
-Implementation is completely the same as sceIoChstatForDriver. The only difference is that (bits = bits & (~0x10000)) operation is not applied.
+Temp name was sceVopGetStateByFdForDriver.
-<source lang="C">int sceIoChstatForDriver_2(const char *file, SceIoStat *stat, int bits);</source>
+<source>int sceVopFgetstatForDriver(SceVfsNode *pNode, SceVfsFileObject *pVfsFileObject, SceIoStat *stat);</source>
-=== sceIoGetstatForDriver ===
+=== sceVopFchstatForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 1.69
+| 3.60 || 0x082AFD7F
-| 0x75C96D25
-|-
-| 3.60
-| 0x75C96D25
 |}
-Call interface is same as <code>sceIoGetstat</code>
-<source lang="C">int sceIoGetstatForDriver(const char *file, SceIoStat *stat);</source>
+Temp name was sceVopChstatByFdForDriver.
+<source>int sceVopFchstatForDriver(SceVfsNode *pNode, SceVfsFileObject *pObject, SceIoStat *stat, int bit);</source>
-=== sceIoGetstatForDriver_2 ===
+=== sceVopWhiteoutForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 0.996-3.60 || 0xF53399BC
-| 0xD6503624
 |}
-Derived from i/o dispatcher, not from user function
-Implementation is completely the same as sceIoGetstatForDriver. The only difference is that st_attr in SceIoStat is not set.
+Temp name was sceVopTrashForDriver.
-<source lang="C">int sceIoGetstatForDriver_2(const char *file, SceIoStat *stat);</source>
+Move target node entry file/directory to <code>xx0:/SceIoTrash/</code>.
-=== sceIoMkdirForDriver ===
+=== sceVopCleanupForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 1.69
+| 3.60 || 0x0F7E1718
-| 0x7F710B25
-|-
-| 3.60
-| 0x7F710B25
 |}
-Call interface is same as <code>sceIoMkdir</code>
-<source lang="C">int sceIoMkdirForDriver(const char *dir, SceMode mode);</source>
+Temp name was sceVop_unk_offset_0x6C_ForDriver.
-=== sceIoReadForDriver ===
+=== sceVopZerofillForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
-|-
-| 1.69
-| 0xE17EFC03
 |-
-| 3.60
+| 0.996-3.60 || 0xEEAE8B51
-| 0xE17EFC03
 |}
-Call interface is same as <code>sceIoRead</code>
-<source lang="C">int sceIoReadForDriver(SceUID fd, void *data, SceSize size);</source>
+Temp name was sceVop_unk_offset_0x70_ForDriver.
-=== sceIoCloseForDriver ===
+=== vfsIsLockedMntForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 1.69
+| 3.60 || 0xC468B5EF
-| 0xF99DD8A3
-|-
-| 3.60
-| 0xF99DD8A3
 |}
-Call interface is same as <code>sceIoClose</code>
-<source lang="C">int sceIoCloseForDriver(SceUID fd);</source>
+some thread op
-=== sceIoRenameForDriver ===
+=== vfsBuffCacheCtlForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
-|-
-| 1.69
-| 0xDC0C4997
 |-
-| 3.60
+| 3.60 || 0xA7020B0D
-| 0xDC0C4997
 |}
-Call interface is same as <code>sceIoRename</code>
-<source lang="C">int sceIoRenameForDriver(const char *oldname, const char *newname);</source>
+big function
+<source>int vfsBuffCacheCtlForDriver(SceVfsNode *vp, int a2, int a3, int a4, int cache_size);</source>
-=== sceIoRemoveForDriver ===
+=== vfsBuffCacheFreeForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
-|-
-| 1.69
-| 0x0D7BB3E1
 |-
-| 3.60
+| 3.60 || 0xD6AB5E4B
-| 0x0D7BB3E1
 |}
-Call interface is same as <code>sceIoRemove</code>
-<source lang="C">int sceIoRemoveForDriver(const char *file);</source>
+some node op
-=== sceIoCancelForDriver ===
+=== vfsLockVnodeForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 0.995-3.60 || 0xAA45010B
-| 0x6D59658D
 |}
-Derived from <code>sceIoCancel</code>
-=== sceIoChstatAsyncForDriver ===
+Temp name was sceVfsNodeWaitEventFlagForDriver, sceVfsLockVnodeForDriver.
+calls <code>sceKernelWaitEventFlagForDriver</code> using <code>event_flag_SceVfsVnode</code> from <code>vfs_node</code>
+. If the ownerId of the locked vnode is -1 (no anyone), set own thread as owner and leave the function.
+. If the ownerId is already mine, increment recursiveCount and leave the function.
+. If we get here we increment waiter.
+. Just to be sure, we do a check for 1 again and if the ownerId is -1, we set the ownerId to ourselves in the thread, then decrement waiter and leave the function.
+. If you've come this far, wait for the other owner to unlock the vnode with sceKernelWaitEventFlag.
+. Decrement the waiter and set the ownerId to its own thread and leave the function.
+<source lang="C">int vfsLockVnodeForDriver(vfs_node *node);</source>
+=== vfsUnlockVnodeForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 0.990-3.60 || 0x6048F245
-| 0x7EC442BF
 |}
-Derived from <code>_sceIoChstatAsync</code>
-=== sceIoChstatByFdAsyncForDriver ===
+Temp name was sceVfsNodeSetEventFlagForDriver, sceVfsUnlockVnodeForDriver.
-{| class="wikitable"
-|-
+calls <code>sceKernelSetEventFlagForDriver</code> using <code>event_flag_SceVfsVnode</code> from <code>vfs_node</code>
-! Version
-! NID
+. The function fails if the ownerId is not its own thread.
-|-
-| 3.60
+. If recursiveCount is not 0, decrement recursiveCount and leave the function.
-| 0xEC974400
-|}
+. If recursiveCount is 0, checks waiter value.
-Derived from <code>sceIoChstatByFdAsync</code>
+. If waiter is not 0, set ownerId to 0xfffffffd, then notify other waiting threads of unlock with sceKernelSetEventFlag and leave the function.
+. Check ownerId and waiter again and execute 4 if there is a discrepancy with the first check.
+. Set waiter to 0 and ownerId to -1 and leave the function.
+<source lang="C">int vfsUnlockVnodeForDriver(vfs_node* node);</source>
-=== sceIoChstatByFdForDriver ===
+=== vfsMountForDriver ===
 {| class="wikitable"
+! Version !! NID
 |-
-! Version
+| 0.990-3.60 || 0xB62DE9A6
-! NID
-|-
-| 3.60
-| 0xDF57A75F
 |}
-Derived from <code>_sceIoChstatByFd</code>
-<source lang="C">int sceIoChstatByFdForDriver(SceUID fd, SceIoStat *stat, int bits);</source>
+This is a guessed name.
+Temp name was sceVfsMountForDriver.
+<source lang="C">int vfsMountForDriver(vfs_mount_point_info_base *mnt);</source>
-=== sceIoCloseAsyncForDriver ===
+=== vfsUmountForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 1.69-3.60 || 0x9C7E7B76
-| 0x11C57CC6
 |}
-Derived from <code>sceIoCloseAsync</code>
-=== sceIoDevctlAsyncForDriver ===
+Temp name was sceVfsUnmountForDriver.
+<source lang="C">int vfsUmountForDriver(vfs_unmount_data *data);</source>
+=== sceVfsAddVfsForDriver ===
 {| class="wikitable"
+! Version !! NID
 |-
-! Version
+| 0.990-3.60 || 0x673D2FCD
-! NID
-|-
-| 3.60
-| 0xA9302946
 |}
-Derived from <code>_sceIoDevctlAsync</code>
-=== sceIoDevctlForDriver ===
+Used by [[SceSdstor]], [[SceTty2uart]], [[SceKernelBlueScreenOfDeath]].
+<source lang="C">int sceVfsAddVfsForDriver(vfs_add_data *data);</source>
+=== sceVfsDeleteVfsForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 1.69-3.60 || 0x9CBFA725
-| 0x16882FC4
 |}
-Derived from <code>_sceIoDevctl</code>
-<source lang="C">int sceIoDevctlForDriver(const char *dev, unsigned int cmd, void *indata, int inlen, void *outdata, int outlen);</source>
+<source lang="C">int sceVfsDeleteVfsForDriver(const char *name, void **deleted_node);</source>
-=== sceIoDcloseForDriver ===
+=== vfsMountForPFSForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0xFEEE44A9
-| 0x19C81DD6
 |}
-Derived from <code>sceIoDclose</code>
-<source lang="C">int sceIoDcloseForDriver(SceUID fd);</source>
+Temp name was scePfsMgrVfsMountForDriver.
-=== sceIoFlockForDriver ===
+operation index 3 in <code>cond_ctx</code>
+<source lang="C">
+// this function can be used with PFS_GDSD_INF filesystem
+int vfsMountForPFSForDriver(vfs_mount_point_info_base *mnt, int unk1, int unk2);
+</source>
+=== vfsUmountForPFSForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0xD220539D
-| 0x16336A0D
 |}
-Derived from <code>sceIoFlockForSystem</code>
-=== sceIoGetstatByFdAsyncForDriver ===
+This is a guessed name.
+Temp name was scePfsMgrVfsUmountForDriver.
+operation index 4 in <code>cond_ctx</code>
+<source lang="C">int vfsUmountForPFSForDriver(vfs_unmount_data* umnt, int unk1, int unk2);</source>
+=== vfsLockMntForDriver ===
 {| class="wikitable"
+! Version !! NID
 |-
-! Version
+| 3.60 || 0x6B3CA9F7
-! NID
-|-
-| 3.60
-| 0x0FEE1238
 |}
-Derived from <code>sceIoGetstatByFdAsync</code>
-=== sceIoGetstatByFdForDriver ===
+Temp name was sceVfsLockMntForDriver.
+=== vfsUnlockMntForDriver ===
 {| class="wikitable"
+! Version !! NID
 |-
-! Version
+| 3.60 || 0xDC2D8BCE
-! NID
-|-
-| 3.60
-| 0x462F059B
 |}
-Derived from <code>_sceIoGetstatByFd</code>
-<source lang="C">int sceIoGetstatByFdForDriver(SceUID fd, SceIoStat *stat);</source>
+Temp name was sceVfsUnlockMntForDriver.
-=== sceIoGetstatAsyncForDriver ===
+=== vfsGetNewVnodeForDriver ===
 {| class="wikitable"
+! Version !! NID
 |-
-! Version
+| 0.990-3.60 || 0xD60B5C63
-! NID
-|-
-| 3.60
-| 0x94A5304A
 |}
-Derived from <code>_sceIoGetstatAsync</code>
-=== sceIoIoctlAsyncForDriver ===
+Temp name was sceVfsGetNewVnodeForDriver.
+<source lang="C">int vfsGetNewVnodeForDriver(vfs_mount *mnt, node_ops2 *ops, int unused, vfs_node **node);</source>
+=== vfsFreeVnodeForDriver ===
 {| class="wikitable"
+! Version !! NID
 |-
-! Version
+| 0.990-3.60 || 0x21D57633
-! NID
-|-
-| 3.60
-| 0xB761E91B
 |}
-Derived from <code>_sceIoIoctlAsync</code>
-=== sceIoIoctlForDriver ===
+Temp name was sceVfsFreeVnodeForDriver.
+=== vfsIsOwnerForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0xC3AE93A2
-| 0x161CD33F
 |}
-Derived from <code>_sceIoIoctl</code>
-<source lang="C">int sceIoIoctlForDriver(SceUID fd, unsigned int cmd, void *indata, int inlen, void *outdata, int outlen);</source>
+This is a guessed name.
+Temp name was sceIoComparisonCurrentThreadIdForDriver.
+<source lang="C">SceBool vfsIsOwnerForDriver(void *vp);</source>
-=== sceIoLseekAsyncForDriver ===
+=== vfsGetVnodeNameForDriver ===
 {| class="wikitable"
+! Version !! NID
 |-
-! Version
+| 0.990-3.60 || 0xAA253B68
-! NID
-|-
-| 3.60
-| 0x541BAABD
 |}
-Derived from <code>_sceIoLseekAsync</code>
-=== sceIoMkdirAsyncForDriver ===
+Temp name was sceVfsGetVnodeNameForDriver.
+<source lang="C">int vfsGetVnodeNameForDriver(SceVfsNode *vp, char *name, SceSize n, SceSize *result);</source>
+=== vfsAllocateFileForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 0.995-3.60 || 0xBBAC1751
-| 0x27003443
 |}
-Derived from <code>_sceIoMkdirAsync</code>
-=== sceIoOpenAsyncForDriver ===
+Temp name was sceVfsAllocateFileForDriver.
+Creates a <code>SceUIDVfsFileClass</code> object and returns UID and pointer to created object.
+<source lang="C">
+// type of a1 is unknown for now - at least 0x98 bytes wide
+// FW 0.995
+SceUID vfsAllocateFileForDriver(void *vp, SceUIDVfsFileObject **ppFile);
+// FW 3.60
+// If name is NULL, default name (same as 0.995, "SceVfsFile") is used as object name
+// Else, name will be created with snprintf("file %s %s", something_from_a1, name);
+SceUID vfsAllocateFileForDriver(void *vp, SceVfsFileObject **ppFile, const char *name);
+</source>
+=== vfsAllocateFileDummyForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0xCDF3EF52
-| 0x451001DE
 |}
-Derived from <code>_sceIoOpenAsync</code>
-=== sceIoPreadAsyncForDriver ===
+This is a guessed name.
+<source lang="C">SceUID vfsAllocateFileDummyForDriver(int flags, SceBool is_dir, const char *name);</source>
+=== vfsFreeFileForDriver ===
 {| class="wikitable"
+! Version !! NID
 |-
-! Version
+| 0.990-3.60 || 0xC85E33A2
-! NID
-|-
-| 3.60
-| 0x64A46A2C
 |}
-Derived from <code>_sceIoPreadAsync</code>
-=== sceIoPreadForDriver ===
+Temp name was sceVfsFreeFileForDriver.
+Frees a file created with [[SceIofilemgr#vfsAllocateFileForDriver|vfsAllocateFileForDriver]].
+<source lang="C">SceInt32 vfsFreeFileForDriver(void *vp, SceUID file_uid);</source>
+=== vfsRmdevForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0x69A7E076
-| 0x2A17515D
 |}
-Derived from <code>_sceIoPread</code>
-<source lang="C">
+Temp name was sceVfsRmdevForDriver.
-//returns number of read bytes
-int sceIoPreadForDriver(SceUID fd, char* buffer, SceSize size, int ignored, int offsetLo, int offsetHi)
-</source>
-=== sceIoPwriteAsyncForDriver ===
+=== vfsOpenForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0x0E518FA9
-| 0x202CDDE3
 |}
-Derived from <code>_sceIoPwriteAsync</code>
-=== sceIoPwriteForDriver ===
+Temp name was t_sceIoOpenForDriver, sceVfsOpenForDriver.
+thread callback for <code>sceIoOpenForDriver</code>
+<source lang="C">
+typedef struct SceVfsOpenArgs {
+  const char *filename;
+  int flag;
+  SceIoMode mode;
+} SceVfsOpenArgs;
+SceUID vfsOpenForDriver(SceVfsOpenArgs *argp);
+</source>
+=== vfsCloseForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0x1AE14011
-| 0x5F1512C8
 |}
-Derived from <code>_sceIoPwrite</code>
-=== sceIoReadAsyncForDriver ===
+Temp name was t_sceIoCloseForDriver, sceVfsCloseForDriver.
+thread callback for <code>sceIoCloseForDriver</code>
+<source lang="C">
+typedef struct SceVfsCloseArgs {
+  SceUID fd;
+} SceVfsCloseArgs;
+int vfsCloseForDriver(SceVfsCloseArgs *argp);
+</source>
+=== vfsReadForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0x809892C1
-| 0x69047C81
 |}
-Derived from <code>sceIoReadAsync</code>
-=== sceIoRemoveAsyncForDriver ===
+Temp name was t_sceIoReadForDriver, sceVfsReadForDriver.
-{| class="wikitable"
-|-
+thread callback for <code>sceIoReadForDriver</code>
-! Version
-! NID
+<source lang="C">
-|-
+typedef struct SceVfsReadArgs {
-| 3.60
+  SceUID fd;
-| 0xF9D6507D
+  void *data;
-|}
+  SceSize size;
-Derived from <code>_sceIoRemoveAsync</code>
+} SceVfsReadArgs;
+int vfsReadForDriver(SceVfsReadArgs *argp);
+</source>
-=== sceIoRenameAsyncForDriver ===
+=== vfsWriteForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0x8598ADC3
-| 0xAACBC47A
 |}
-Derived from <code>_sceIoRenameAsync</code>
-=== sceIoRmdirAsyncForDriver ===
+Temp name was t_sceIoWriteForDriver, sceVfsWriteForDriver.
+thread callback for <code>sceIoWriteForDriver</code>
+<source lang="C">
+typedef struct SceVfsWriteArgs {
+  SceUID fd;
+  const void *data;
+  SceSize size;
+} SceVfsWriteArgs;
+int vfsWriteForDriver(SceVfsWriteArgs *argp);
+</source>
+=== vfsIoctlForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0xC1DD4317
-| 0xF5B0B36C
 |}
-Derived from <code>_sceIoRmdirAsync</code>
-=== sceIoRmdirForDriver ===
+This is a guessed name.
-{| class="wikitable"
-|-
-! Version
-! NID
-|-
-| 3.60
-| 0x1CC9C634
-|}
-Derived from <code>_sceIoRmdir</code>
-<source lang="C">int sceIoRmdirForDriver(const char *path);</source>
+Temp name was t_sceIoIoctlForDriver, sceVfsIoctlForDriver.
-=== sceIoSyncByFdAsyncForDriver ===
+thread callback for <code>sceIoIoctlForDriver</code>
+<source lang="C">
+typedef struct SceVfsIoctlArgs {
+  SceUID fd;
+  unsigned int cmd;
+  void *indata;
+  int inlen;
+  void *outdata;
+  int outlen;
+} SceVfsIoctlArgs;
+int vfsIoctlForDriver(SceVfsIoctlArgs *argp);
+</source>
+=== vfsChstatForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0xBCE4865B
-| 0x041209CF
 |}
-Derived from <code>sceIoSyncByFdAsync</code>
-=== sceIoSyncByFdForDriver ===
+Temp name was t_sceIoChstatForDriver, sceVfsChstatForDriver.
+thread callback for <code>sceIoChstatForDriver</code>
+<source lang="C">
+typedef struct SceVfsChstatArgs {
+   const char *path;
+   const SceIoStat *stat;
+   unsigned int cbit;
+   uint32_t store_attr;
+} SceVfsChstatArgs;
+int vfsChstatForDriver(SceVfsChstatArgs *argp);
+</source>
+=== vfsChstatByFdForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0x7517FE29
-| 0x43170575
 |}
-Derived from <code>sceIoSyncByFd</code>
-=== sceIoSyncAsyncForDriver ===
+Temp name was t_sceIoChstatByFdForDriver, sceVfsChstatByFdForDriver.
-{| class="wikitable"
-|-
-! Version
-! NID
-|-
-| 3.60
-| 0x4F9EA8B0
-|}
-Derived from <code>_sceIoSyncAsync</code>
-=== sceIoSyncForDriver ===
+thread callback for <code>sceIoChstatByFdForDriver</code>
+<source lang="C">
+typedef struct SceVfsChstatByFdArgs {
+  SceUID fd;
+  const SceIoStat *buf,
+  unsigned int cbit;
+} SceVfsChstatByFdArgs;
+int vfsChstatByFdForDriver(SceVfsChstatByFdArgs *args);
+</source>
+=== vfsPreadForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0x0B54F9E0
-| 0xDDF78594
 |}
-Derived from <code>_sceIoSync</code>
-=== sceIoWriteAsyncForDriver ===
+Temp name was t_sceIoPreadForDriver, sceVfsPreadForDriver.
+thread callback for <code>sceIoPreadForDriver</code>
+<source lang="C">
+typedef struct SceVfsPreadArgs {
+   SceUID uid;
+   void *data;
+   SceSize size;
+   int paddind; // unused
+   SceOff offset;
+} SceVfsPreadArgs;
+int vfsPreadForDriver(SceVfsPreadArgs *argp);
+</source>
+=== vfsPwriteForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0xE5DEA6B7
-| 0xA1BD13D0
 |}
-Derived from <code>sceIoWriteAsync</code>
-=== sceIoGetProcessDefaultPriorityForSystem ===
+Temp name was t_sceIoPwriteForDriver, sceVfsPwriteForDriver.
+thread callback for <code>sceIoPwriteForDriver</code>
+<source lang="C">
+typedef struct SceVfsPwriteArgs {
+   SceUID uid;
+   const void *data;
+   SceSize size;
+   int padding;
+   SceOff offset;
+} SceVfsPwriteArgs;
+int vfsPwriteForDriver(SceVfsPwriteArgs *argp);
+</source>
+=== vfsGetMntInfoForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0xB987450D
-| 0xCE397158
 |}
-=== sceIoSetProcessDefaultPriorityForSystem ===
+This is a guessed name.
+Temp name was sceIoGetMountInfoForDriver.
+<source lang="C">int vfsGetMntInfoForDriver(void *mnt, SceIoMountInfo *pInfo);</source>
+=== vfsGetMntListForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0xC20C621C
-| 0xABE65071
 |}
-=== sceIoDopenAsyncForDriver ===
+This is a guessed name.
+Temp name was sceIoGetMountVectorForDriver.
+<source lang="C">int vfsGetMntList(SceIoMount *pMount, SceUInt32 nMount, SceUInt32 *pnMount);</source>
+=== sceIoMountForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0xD070BC48
-| 0x72F06BDE
 |}
-=== sceIoDcloseAsyncForDriver ===
+operation index 1 in <code>cond_ctx</code>
-{| class="wikitable"
-|-
-! Version
-! NID
-|-
-| 3.60
-| 0xC08F199F
-|}
-=== sceIoDreadAsyncForDriver ===
+<source lang="C">
-{| class="wikitable"
+// intermediate function between sceAppMgrGameDataMountForDriver and sceVfsMountForDriver
-|-
+int sceIoMountForDriver(int vshMountId, const char *path, int flags, int unk3, int arg_0, int arg_4);
-! Version
+</source>
-! NID
-|-
-| 3.60
-| 0x5982B0E3
-|}
-=== t_sceIoOpenForDriver ===
+=== sceIoUmountForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 3.60 || 0x20574100
-| 0x0E518FA9
 |}
-thread callback for <code>sceIoOpenForDriver</code>
+operation index 2 in <code>cond_ctx</code>
 <source lang="C">
-typedef struct sceIoOpenForDriver_args
+// intermediate function between sceAppMgrUmountForDriver and sceVfsUnmountForDriver
-{
+int sceIoUmountForDriver(int vshMountId, int unk1, int unk2, int unk3);
- const char *file;
- int flags;
- SceMode mode;
-}sceIoOpenForDriver_args;
-SceUID t_sceIoOpenForDriver(sceIoOpenForDriver_args* args);
 </source>
-=== t_sceIoCloseForDriver ===
+=== sceIoRmdevForDriver ===
 {| class="wikitable"
+! Version !! NID
 |-
-! Version
+| 0.990-3.60 || 0xA39A9CA7
-! NID
-|-
-| 3.60
-| 0x1AE14011
 |}
-thread callback for <code>sceIoCloseForDriver</code>
+Like sceIoRemove?
-<source lang="C">
+The difference with sceIoRemove is that sceIoRmdev seems to remove the entry to be deleted directly without moving it to SceIoTrash.
-typedef struct sceIoCloseForDriver_args
-{
-  SceUID fd;
-}sceIoCloseForDriver_args;
-int t_sceIoCloseForDriver(sceIoCloseForDriver_args* args);
+<source lang="C">int sceIoRmdevForDriver(const char *path, int flags, int a3, int a4);</source>
-</source>
-=== t_sceIoReadForDriver ===
+=== sceIoDelDrvForDriver ===
 {| class="wikitable"
+! Version !! NID
 |-
-! Version
+| 0.931 || 0xD51774E3
-! NID
 |-
-| 3.60
+| 3.60 || not present
-| 0x809892C1
 |}
-thread callback for <code>sceIoReadForDriver</code>
+Example: "tty"
-<source lang="C">
-typedef struct sceIoReadForDriver_args
-{
-  SceUID fd;
-  void *data;
-  SceSize size;
-}sceIoReadForDriver_args;
-int t_sceIoReadForDriver(sceIoReadForDriver_args* args);
+<source lang="C">int sceIoDelDrvForDriver(const char *drv);</source>
-</source>
-=== t_sceIoWriteForDriver ===
+=== sceIoAddDrvForDriver ===
 {| class="wikitable"
+! Version !! NID
 |-
-! Version
+| 0.931 || 0x1D8AC9A7
-! NID
 |-
-| 3.60
+| 3.60 || not present
-| 0x8598ADC3
 |}
-thread callback for <code>sceIoWriteForDriver</code>
+<source lang="C">int sceIoAddDrvForDriver(const char **drv);</source>
-<source lang="C">
+=== sceIoDreadForDriver ===
-typedef struct sceIoWriteForDriver_args
-{
-  SceUID fd;
-  const void *data;
-  SceSize size;
-}sceIoWriteForDriver_args;
-int t_sceIoWriteForDriver(sceIoWriteForDriver_args* args);
-</source>
-=== t_sceIoIoctlForDriver ===
 {| class="wikitable"
+! Version !! NID
 |-
-! Version
+| 1.69-3.60 || 0x20CF5FC7
-! NID
-|-
-| 3.60
-| 0xC1DD4317
 |}
-thread callback for <code>sceIoIoctlForDriver</code>
+Call interface is same as <code>sceIoDread</code>.
-<source lang="C">
+<source lang="C">int sceIoDreadForDriver(SceUID fd, SceIoDirent *dir);</source>
-typedef struct sceIoIoctlForDriver_args
-{
-  SceUID fd;
-  unsigned int cmd;
-  void *indata;
-  int inlen;
-  void *outdata;
-  int outlen;
-}sceIoIoctlForDriver_args;
-SceOff t_sceIoLseekForDriver(sceIoIoctlForDriver* args);
-</source>
-=== t_sceIoChstatForDriver ===
+=== sceIoDreadForVshbridgeForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 0.995-3.60 || 0x03051B02
-| 0xBCE4865B
 |}
-thread callback for <code>sceIoChstatForDriver</code>
+Temp name was sceIoDreadForDriver_2. Derived from [[SceVshBridge#vshIoDread|_vshIoDread]].
-<source lang="C">
+Implementation is completely the same as sceIoDreadForDriver. The only difference is that st_attr in SceIoStat is not set.
-typedef struct sceIoChstatForDriver_args
-{
-   const char *file;
-   SceIoStat *stat;
-   int bits;
-   uint32_t store_attr;
-}sceIoChstatForDriver_args;
-SceOff t_sceIoChstatForDriver(sceIoChstatForDriver_args* args);
+<source lang="C">int sceIoDreadForVshbridgeForDriver(SceUID fd, SceIoDirent *dir);</source>
-</source>
-=== t_sceIoChstatByFdForDriver ===
+=== sceIoWriteForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 1.69-3.60 || 0x21EE91F0
-| 0x7517FE29
 |}
-thread callback for <code>sceIoChstatByFdForDriver</code>
+Call interface is same as <code>sceIoWrite</code>
-<source lang="C">
+<source lang="C">int sceIoWriteForDriver(SceUID fd, const void *data, SceSize size);</source>
-struct sceIoChstatByFdForDriver_args
-{
-  SceUID uid;
-  void *unk1;
-  int unk2;
-};
-int t_sceIoChstatByFdForDriver(sceIoChstatByFdForDriver_args* args);
+=== sceIoDopenForDriver ===
-</source>
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0x463B25CC
+|}
-== SceIofilemgrForDriver vfs callbacks ==
+Call interface is same as <code>sceIoDopen</code>
-Vfs callbacks are harder to reverse since it looks like not all of them are exported. Looks like some of them are not even exposed as subroutines.
+<source lang="C">SceUID sceIoDopenForDriver(const char *dirname);</source>
-Here will go an attempt to desctibe interface of actual callbacks with single ctx argument (as opposed to exported functions that pack arguments into ctx)
+=== sceIoLseekForDriver ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 0.931-3.60 || 0x62090481
+|}
-=== vfs_func1 ===
+Call interface is same as <code>sceIoLseek</code>
-<source lang="c">
-typedef struct vfs_func1_args
+<source lang="C">SceOff sceIoLseekForDriver(SceUID fd, SceOff offset, int whence);</source>
-{
-   vfs_mount* arg0;
-   void* arg1;
-}vfs_func1_args;
-int vfs_func1(vfs_func1_args* ctx)
+=== sceIoOpenForDriver ===
-</source>
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 0.931-3.60 || 0x75192972
+|}
-=== vfs_func2 ===
+Call interface is same as [[SceLibKernel#sceIoOpen|sceIoOpen]].
-<source lang="c">
-typedef struct vfs_func2_args
-{
-   //fields are yet unknown
-}vfs_func2_args;
-int vfs_func2(vfs_func2_args* ctx)
+If the process is game or non-game, the `SCE_O_NOBUF` flag will be ignored.
-</source>
-=== vfs_func3 ===
+<source lang="C">SceUID sceIoOpenForDriver(const char *filename, int flag, SceIoMode mode);</source>
-<source lang="c">
-typedef struct vfs_func3_args
+=== sceIoOpenForPidForDriver ===
-{
+{| class="wikitable"
-   vfs_mount* arg0;
+|-
-   uint32_t arg1;
+! Version !! NID
-   vfs_node* arg2;
+|-
+| 3.60 || 0xC3D34965
+|}
-}vfs_func3_args;
+This is a wrapper for [[SceIofilemgr#sceIoOpenForDriver|sceIoOpenForDriver]].
-int vfs_func3(vfs_func3_args* ctx)
+Pid is used for <code>sceFiosKernelOverlayResolveSyncForDriver</code>.
-</source>
-=== vfs_func4 ===
+<source lang="C">SceUID sceIoOpenForPidForDriver(SceUID pid, const char *filename, int flag, SceIoMode mode);</source>
-<source lang="c">
-typedef struct vfs_func4_args
-{
-  vfs_node *node;
-  uint32_t unk_4;
-  uint32_t unk_8;
-  //more fields?
+=== sceIoChstatForDriver ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0x7D42B8DC
+|}
+Call interface is same as <code>sceIoChstat</code>
-}vfs_func4_args;
+<source lang="C">int sceIoChstatForDriver(const char *name, const SceIoStat *buf, unsigned int cbit);</source>
-int vfs_func4(vfs_func4_args* ctx)
+=== sceIoChstatForVshbridgeForDriver ===
-</source>
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 0.995-3.60 || 0x1F98BD50
+|}
-=== vfs_func7 ===
+Temp name was sceIoChstatForDriver_2. Derived from [[SceVshBridge#vshIoChstat|_vshIoChstat]].
-<source lang="c">
-typedef struct vfs_func7_args
-{
-   //fields are yet unknown
-}vfs_func7_args;
-int vfs_func7(vfs_func7_args* ctx)
+Implementation is completely the same as <code>sceIoChstatForDriver</code>. The only difference is that (bits = bits & (~0x10000)) operation is not applied.
-</source>
-=== vfs_func9 ===
+<source lang="C">int sceIoChstatForVshbridgeForDriver(const char *name, const SceIoStat *buf, unsigned int cbit);</source>
-<source lang="c">
-typedef struct vfs_func9_args
-{
-   //fields are yet unknown
-}vfs_func9_args;
-int vfs_func9(vfs_func9_args* ctx)
+=== sceIoGetstatForDriver ===
-</source>
+{| class="wikitable"
+! Version !! NID
+|-
+| 1.69-3.60 || 0x75C96D25
+|}
-=== vfs_func10 ===
+Call interface is same as <code>sceIoGetstat</code>.
-<source lang="c">
-typedef struct vfs_func10_args
-{
-   //fields are yet unknown
-}vfs_func10_args;
-int vfs_func10(vfs_func10_args* ctx)
+<source lang="C">int sceIoGetstatForDriver(const char *name, SceIoStat *buf);</source>
-</source>
-=== vfs_func12 ===
+=== sceIoGetstatForVshbridgeForDriver ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 0.995-3.60 || 0xD6503624
-| 0xB07B307D
 |}
-<source lang="c">
+Temp name was sceIoGetstatForDriver_2. Derived from [[SceVshBridge#vshIoGetstat|_vshIoGetstat]].
-int vfs_func12(vfs_mount* mount, const char *dev, unsigned int cmd, void *indata, int inlen, void *outdata, int outlen);
+Implementation is completely the same as sceIoGetstatForDriver. The only difference is that st_attr in SceIoStat *buf is not set.
-typedef struct vfs_func12_args
+<source lang="C">int sceIoGetstatForVshbridgeForDriver(const char *name, SceIoStat *buf);</source>
-{
-   uint32_t unk_0;
-   uint32_t unk_4;
-   uint32_t unk_8; // some switch number
-   char* name;
-   uint32_t nameLength;
+=== sceIoMkdirForDriver ===
-   uint32_t unk_14;
-   uint32_t unk_18;
-   //more fields ?
-}vfs_func12_args;
-</source>
-=== vfs_func13 ===
 {| class="wikitable"
 |-
-! Version
+! Version !! NID
-! NID
 |-
-| 3.60
+| 1.69-3.60 || 0x7F710B25
-| 0xF7DAC0F5
 |}
-<source lang="c">
+Call interface is same as <code>sceIoMkdir</code>
-typedef struct vfs_func13_args
-{
-   uint32_t unk_0;
-   char* blockDeviceName;
-   uint32_t unk_8;
-   uint32_t unk_C;
-   char* numericName;
+<source lang="C">int sceIoMkdirForDriver(const char *dirname, SceIoMode mode);</source>
-   uint32_t blockDeviceNameLength;
-   uint32_t* numericNameLength;
-}vfs_func13_args;
-int vfs_func13(vfs_func13_args* ctx)
+=== sceIoReadForDriver ===
-</source>
-== SceIofilemgrForDriver vfs node callbacks ==
-It looks like vfs callbacks are exported. Callbacks can be identified using these steps:
-*Find all functions that contain indirect calls
-*Locate only calls that use address, taken from table, that is pointed by vfs_node (offset 0x40, then valid offset inside pointer table)
-*Trace back to first exported function (usually this is single export, not far away in call stack)
-*Turns out ScePfsMgr and SceExfatfs use these exports from their vfs node function callbacks, so this information can be mapped/matched.
-=== vfs_node_func1 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x76B79BEC
+| 1.69-3.60 || 0xE17EFC03
-|-
 |}
-<source lang="c">
-int vfs_node_func1(vfs_node *node, vnf1_arg1* dev, int unk2, int unk3)
-struct vnf1_arg1
+Call interface is same as <code>sceIoRead</code>
-{
-  char* blockDevice;
-  uint32_t nameLength;
-  char* unixMount;
-}vnf1_arg1;
-//this type applies only to SceSdif
+<source lang="C">int sceIoReadForDriver(SceUID fd, void *buf, SceSize nbyte);</source>
-struct vnf1_arg3
+=== sceIoCloseForDriver ===
-{
-  uint32_t unk_0;
-  uint32_t unk_4;
-  uint32_t unk_8;
-  uint32_t unk_C;
-  uint32_t unk_10;
-  uint32_t unk_14;
-  uint32_t unk_18;
-  uint32_t unk_1C;
-  sd_stor_device_handle* handle;
-  //not sure about size, can be more fields ?
-}vnf1_arg3;
-struct vfs_node_func1_args
-{
-   vfs_node* node;
-   vnf1_arg1* arg1; //ignored (applies to SceSdif)
-   uint32_t arg2;
-   vnf1_arg3* arg3; //result (applies to SceSdif)
-}vfs_node_func1_args;
-</source>
-arguments are packed into <code>vfs_node_func1_args</code> and passed to <code>vfs_node_func1</code> callback
-=== vfs_node_func2 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x9E347C7D
+| 1.69-3.60 || 0xF99DD8A3
-|-
 |}
-<source lang="c">
-int vfs_node_func2(vfs_node *node, int unk1, int unk2, int unk3, int arg_0)
-struct vfs_node_func2_args
+Call interface is same as <code>sceIoClose</code>
-{
-   vfs_node* node;
-   uint32_t arg1;
-   uint32_t arg2;
-   uint32_t arg3;
-   uint32_t arg_0;
-}vfs_node_func2_args;
-</source>
+<source lang="C">int sceIoCloseForDriver(SceUID fd);</source>
-arguments are packed into <code>vfs_node_func2_args</code> and passed to <code>vfs_node_func2</code> callback
+=== sceIoRenameForDriver ===
-=== vfs_node_func3 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x40944C2E
+| 1.69-3.60 || 0xDC0C4997
-|-
 |}
-<source lang="c">
-int vfs_node_func3(vfs_node *node, int unk1)
-struct vfs_node_func3_args
+Call interface is same as <code>sceIoRename</code>
-{
-   vfs_node* node;
-   uint32_t arg1;
-}vfs_node_func3_args;
-</source>
+<source lang="C">int sceIoRenameForDriver(const char *oldname, const char *newname);</source>
-arguments are packed into <code>vfs_node_func3_args</code> and passed to <code>vfs_node_func3</code> callback
+=== sceIoRemoveForDriver ===
-=== vfs_node_func4 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0xA5A6A55C
+| 1.69-3.60 || 0x0D7BB3E1
-|-
 |}
-<source lang="c">
-int vfs_node_func4(vfs_node *node, vfs_node** new_node, vnf4_arg2* dev, int unk3)
-struct vnf4_arg2
+Call interface is same as <code>sceIoRemove</code>
-{
-   char* blockDeviceName;
-   int nameLength;
-} vnf4_arg2;
-struct vfs_node_func4_args
+<source lang="C">int sceIoRemoveForDriver(const char *filename);</source>
-{
-   vfs_node* node;
-   vfs_node** new_node; //result
-   vnf4_arg2* dev;
-   uint32_t arg3; //ignored (applies to SceSdif)
-}vfs_node_func4_args;
-</source>
+=== sceIoCancelForDriver ===
-arguments are packed into <code>vfs_node_func4_args</code> and passed to <code>vfs_node_func4</code> callback
-=== vfs_node_func5_or_19 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x570388A5
+| 3.60 || 0x6D59658D
-|-
 |}
-<source lang="c">int vfs_node_func5_or_19(vfs_node *n0, int unk1, int unk2, int unk3, int arg_0)</source>
-=== vfs_node_func5_or_19 ===
+Derived from <code>sceIoCancel</code>
+=== sceIoChstatAsyncForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0xABBC80E3
+| 3.60 || 0x7EC442BF
-|-
 |}
-<source lang="c">int vfs_node_func5_or_19(vfs_node *n0, int unk1, int unk2, int unk3, int arg_0, int arg_4, int arg_8)</source>
-=== vfs_node_func6_or_20 ===
+Derived from <code>_sceIoChstatAsync</code>
+=== sceIoChstatByFdAsyncForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x9A68378D
+| 3.60 || 0xEC974400
-|-
 |}
-<source lang="c">int vfs_node_func6_or_20(vfs_node *n0, int unk1, int unk2, int unk3, int arg_0)</source>
-=== vfs_node_func6_or_20 ===
+Derived from <code>sceIoChstatByFdAsync</code>
+=== sceIoChstatByFdForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0xA53C040D
+| 3.60 || 0xDF57A75F
-|-
 |}
-<source lang="c">int vfs_node_func6_or_20(vfs_node *n0, int unk1, int unk2, int unk3, int arg_0, int arg_4, int arg_8)</source>
-=== vfs_node_func7 ===
+Derived from <code>_sceIoChstatByFd</code>
+<source lang="C">int sceIoChstatByFdForDriver(SceUID fd, const SceIoStat *buf, unsigned int cbit);</source>
+=== sceIoCloseAsyncForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0xB2B13818
+| 3.60 || 0x11C57CC6
-|-
 |}
-<source lang="c">
-int vfs_node_func7(vfs_node *node, vnf7_arg1* objectBase, SceOff offset, int whence)
-struct vnf7_arg1
+Derived from <code>sceIoCloseAsync</code>
-{
-  uint32_t unk_0;
-  uint32_t unk_4;
-  uint32_t unk_8;
-  uint32_t unk_C;
-  uint32_t unk_10;
+=== sceIoDevctlAsyncForDriver ===
-  uint32_t unk_14;
-  uint32_t unk_18;
-  uint32_t unk_1C;
-  void* unk_20; // pointer to structure. most likely device specific that has fast_mutex as first field
-} vnf7_arg1;
-struct vfs_node_func7_args
-{
-   vfs_node* node;
-   vnf7_arg1* objectBase; //some structure
-   SceOff offset
-   int whence
-}vfs_node_func7_args;
-</source>
-arguments are packed into <code>vfs_node_func7_args</code> and passed to <code>vfs_node_func7</code> callback
-=== vfs_node_func8 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x333C904D
+| 3.60 || 0xA9302946
-|-
 |}
-<source lang="c">
-int vfs_node_func8(vfs_node* node, void* objectBase, unsigned int cmd, void *indata, int inlen, void *outdata, int outlen)
-struct vfs_node_func8_args
+Derived from <code>_sceIoDevctlAsync</code>
-{
-   vfs_node* node;
-   void* objectBase;
-   unsigned int cmd;
-   void *indata;
-   int inlen;
-   void *outdata;
-   int outlen;
-}vfs_node_func8_args;
-</source>
+=== sceIoDevctlForDriver ===
-arguments are packed into <code>vfs_node_func8_args</code> and passed to <code>vfs_node_func8</code> callback
-=== vfs_node_func9 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0xDC1E7EE4
+| 0.990.000-3.740.011 || 0x16882FC4
-|-
 |}
-<source lang="c">
-int vfs_node_func9(vfs_node *node0, vfs_node *node1, void *ctx, int unk)
-need to confirm this type with dump
+cmd list
-typedef struct vnf9_arg2 //most likely this type is also vfs_node (same partial layout of fields)
+{| class="wikitable"
-{
+|-
-   char* blockDeviceName;
+! handler !! cmd !! function
-   int nameLength;
+|-
-   uint32_t unk_8;
+| sdstor || 1 || Update ctx info
-   uint32_t unk_C;
+|-
+| sdstor || 2 || Format rm
-   uint32_t unk_10;
+|-
-   uint32_t unk_14;
+| sdstor || 3 || Set some intr flag
-   uint32_t unk_18;
+|-
-   uint32_t unk_1C;
+| sdstor || 4 || remove
+|-
-   uint32_t unk_20;
+| sdstor || 5 || insert
-   uint32_t unk_24;
+|-
-   uint32_t unk_28;
+| sdstor || 6 || sceSdErase
-   uint32_t unk_2C;
+|-
+| sdstor || 7 || sdctrl_invalidate_partition with check
-   uint32_t unk_30;
+|-
-   uint32_t unk_34;
+| sdstor || 8 || sdctrl_invalidate_partition
-   uint32_t unk_38;
+|-
-   uint32_t unk_3C;
+| exfat || 0x3001 || get_drive_information
+|-
-   uint32_t unk_40;
+| exfat || 0x3004 || set_fake_free
-   uint32_t unk_44;
+|-
-   partition_entry** unk_48;
+| exfat || 0x3005 || clear_fake_free
-}vnf9_arg2;
+|-
+| exfat || 0x3802 || set_whiteout_directory
+|-
+| exfat || 0x3803 || delete_whiteout_entry
+|-
+| exfat || 0x80000001 || _get_file_size_limit
+|}
-struct vfs_node_func9_args
+Derived from [[SceIofilemgr#sceIoDevctl|_sceIoDevctl]].
-{
-   vfs_node* node0;
-   vfs_node* node1;
-   vnf9_arg2* arg2;
-   uint32_t arg3; //ignored (applies to SceSdif)
-}vfs_node_func9_args;
-</source>
+This performs device-specific operations. The details of the operations are driver-dependent.
-arguments are packed into <code>vfs_node_func9_args</code> and passed to <code>vfs_node_func9</code> callback
+It has the same prototype as [[SceLibKernel#sceIoDevctl]].
-=== vfs_node_func10 ===
+<source lang="C">
-{| class="wikitable"
+/*
-|-
+Arguments:
-! Version !! NID
+devname     Specified device ("<devname><unit>:")
-|-
+cmd     Command code
-| 3.60 || 0x2F3F8C70
+arg     Pointer to device-driver-dependent parameter block
-|-
+arglen     Number of bytes in device-driver-dependent parameter block
-|}
+bufp     Pointer to return data storage block
-<source lang="c">
+buflen     Size of return data storage block
-int vfs_node_func10(vfs_node* node, void* unk1, void* unk2, SceMode mode)
-struct vfs_node_func10_args
+Return Values:
-{
+Non-negative (N>=0) Success (driver-dependent)
-   vfs_node* node;
+<0 Error, e.g. SCE_ERROR_ERRNO_EMFILE, SCE_ERROR_ERRNO_ENODEV, SCE_ERROR_ERRNO_EUNSUP
-   void* arg1;
+*/
-   void* arg2;
-   SceMode mode;
-}vfs_node_func10_args;
+int sceIoDevctlForDriver(
+    const char *devname,
+    int cmd,
+    const void *arg,
+    SceSize arglen,
+    void *bufp,
+    SceSize buflen
+);
 </source>
-arguments are packed into <code>vfs_node_func10_args</code> and passed to <code>vfs_node_func10</code> callback
+=== sceIoDcloseForDriver ===
-=== vfs_node_func11 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x1D551105
+| 3.60 || 0x19C81DD6
-|-
 |}
-<source lang="c">
-int vfs_node_func11(vfs_node *node, int unk1, int unk2, int unused)
-struct vfs_node_func11_args
+Derived from <code>sceIoDclose</code>
-{
-   vfs_node* node;
-   uint32_t arg1;
-   uint32_t arg2;
-}vfs_node_func11_args;
-</source>
+<source lang="C">int sceIoDcloseForDriver(SceUID fd);</source>
-arguments are packed into <code>vfs_node_func11_args</code> and passed to <code>vfs_node_func11</code> callback
+=== sceIoFlockForDriver ===
-=== vfs_node_func12 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x00C9C2DD
+| 3.60 || 0x16336A0D
-|-
 |}
-<source lang="c">
-int vfs_node_func12(vfs_node *node, int unk1, int unk2)
-struct vfs_node_func12_args
+Derived from <code>sceIoFlockForSystem</code>
-{
-   vfs_node* node;
-   uint32_t arg1;
-   uint32_t arg2;
-}vfs_node_func12_args;
-</source>
+=== sceIoGetstatByFdAsyncForDriver ===
-arguments are packed into <code>vfs_node_func12_args</code> and passed to <code>vfs_node_func12</code> callback
-=== vfs_node_func13 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x1350F5C7
+| 3.60 || 0x0FEE1238
-|-
 |}
-<source lang="c">
-int vfs_node_func13(vfs_node *node, int unk1)
-struct vfs_node_func13_args
+Derived from <code>sceIoGetstatByFdAsync</code>
-{
-   vfs_node* node;
-   uint32_t arg1;
-}vfs_node_func13_args;
-</source>
+=== sceIoGetstatByFdForDriver ===
-arguments are packed into <code>vfs_node_func13_args</code> and passed to <code>vfs_node_func13</code> callback
-=== vfs_node_func14 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x77584C8F
+| 3.60 || 0x462F059B
-|-
 |}
-<source lang="c">
-int vfs_node_func14(vfs_node* node, void* objectBase, SceIoDirent* dir)
-struct vfs_node_func14_args
+Derived from <code>_sceIoGetstatByFd</code>
-{
-   vfs_node* node;
-   void* objectBase;
-   SceIoDirent* dir;
-}vfs_node_func14_args;
+<source lang="C">
+// Return: 0 on success
+int sceIoGetstatByFdForDriver(SceUID fd, SceIoStat *buf);
 </source>
-arguments are packed into <code>vfs_node_func14_args</code> and passed to <code>vfs_node_func14</code> callback
+=== sceIoGetstatAsyncForDriver ===
-=== vfs_node_func15 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x50A63ACF
+| 3.60 || 0x94A5304A
-|-
 |}
-<source lang="c">
-int vfs_node_func15(vfs_node *node, vfs_node_func15_arg1* arg1, SceIoStat* stat)
-typedef struct vfs_node_func15_arg1 //size is 0x10
+Derived from <code>_sceIoGetstatAsync</code>
-{
-   char* data; //from vfs_node_70 at 0x18
-   int len;
-   int unk_8;
-   int unk_C;
-}vfs_node_func15_arg1;
+=== sceIoIoctlAsyncForDriver ===
-struct vfs_node_func15_args
-{
-   vfs_node* node;
-   vfs_node_func15_arg1* arg1;
-   SceIoStat* stat;
-}vfs_node_func15_args;
-</source>
-arguments are packed into <code>vfs_node_func15_args</code> and passed to <code>vfs_node_func15</code> callback
-=== vfs_node_func16 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x1974FA92
+| 3.60 || 0xB761E91B
-|-
 |}
-<source lang="c">
-int vfs_node_func16(vfs_node *node, void *unk1, SceIoStat *stat, int bits)
-struct vfs_node_func16_args
+Derived from <code>_sceIoIoctlAsync</code>
-{
-   vfs_node* node;
-   uint32_t arg1;
-   SceIoStat *stat;
-   int bits;
-}vfs_node_func16_args;
-</source>
+=== sceIoIoctlForDriver ===
-arguments are packed into <code>vfs_node_func16_args</code> and passed to <code>vfs_node_func16</code> callback
-=== vfs_node_func17 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x36A794C7
+| 3.60 || 0x161CD33F
-|-
 |}
-<source lang="c">
-int vfs_node_func17(vfs_node *node, int unk1, int unk2, int unk3, int arg_0, int arg_4)
-struct vfs_node_func17_args
+Derived from <code>_sceIoIoctl</code>
-{
-   vfs_node* node;
-   uint32_t arg1;
-   uint32_t arg2;
-   uint32_t arg3;
-   uint32_t arg_0;
-   uint32_t arg_4;
-}vfs_node_func17_args;
+<source lang="C">
+// Return: >=0 on success (driver-dependent)
+int sceIoIoctlForDriver(SceUID fd, int cmd, const void *argp, SceSize arglen, void *bufp, SceSize buflen);
 </source>
-arguments are packed into <code>vfs_node_func17_args</code> and passed to <code>vfs_node_func17</code> callback
+=== sceIoLseekAsyncForDriver ===
-=== vfs_node_func21 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x8FB94521
+| 3.60 || 0x541BAABD
-|-
 |}
-<source lang="c">
-int vfs_node_func21(vfs_node *node)
-struct vfs_node_func21_args
+Derived from <code>_sceIoLseekAsync</code>
-{
-   vfs_node* node;
-}vfs_node_func21_args;
-</source>
+=== sceIoMkdirAsyncForDriver ===
-arguments are packed into <code>vfs_node_func21_args</code> and passed to <code>vfs_node_func21</code> callback
-=== vfs_node_func22 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x942AA61F
+| 3.60 || 0x27003443
-|-
 |}
-<source lang="c">
-int vfs_node_func22(vfs_node *node, int unk1)
-struct vfs_node_func22_args
+Derived from <code>_sceIoMkdirAsync</code>
-{
-   vfs_node* node;
-   uint32_t arg1;
-}vfs_node_func22_args;
-</source>
+=== sceIoOpenAsyncForDriver ===
-arguments are packed into <code>vfs_node_func22_args</code> and passed to <code>vfs_node_func22</code> callback
-=== vfs_node_func23 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x0D8A806E
+| 3.60 || 0x451001DE
-|-
 |}
-<source lang="c">int vfs_node_func23(vfs_node *node, int unk1)
-struct vfs_node_func23_args
+Derived from <code>_sceIoOpenAsync</code>
-{
-   vfs_node* node;
-   uint32_t arg1;
-}vfs_node_func23_args;
-</source>
+=== sceIoPreadAsyncForDriver ===
-arguments are packed into <code>vfs_node_func23_args</code> and passed to <code>vfs_node_func23</code> callback
-=== vfs_node_func24 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x9CD96406
+| 3.60 || 0x64A46A2C
-|-
 |}
-<source lang="c">
-int vfs_node_func24(vfs_node *node, int unk1, int unk2)
-struct vfs_node_func24_args
+Derived from <code>_sceIoPreadAsync</code>
-{
-   vfs_node* node;
-   uint32_t arg1;
-   uint32_t arg2;
-}vfs_node_func24_args;
-</source>
+=== sceIoPreadForDriver ===
-arguments are packed into <code>vfs_node_func24_args</code> and passed to <code>vfs_node_func24</code> callback
-=== vfs_node_func25 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x1DBCBB01
+| 3.60 || 0x2A17515D
-|-
 |}
-<source lang="c">
-int vfs_node_func25(vfs_node *node, void* objectBase, SceIoStat *stat)
+Derived from <code>_sceIoPread</code>
-struct vfs_node_func25_args
-{
-   vfs_node* node;
-   void* objectBase;
-   SceIoStat *stat;
-}vfs_node_func25_args;
+<source lang="C">
+// Return: Number of bytes actually read
+int sceIoPreadForDriver(SceUID uid, void *data, int size, SceOff offset);
 </source>
-arguments are packed into <code>vfs_node_func25_args</code> and passed to <code>vfs_node_func25</code> callback
+=== sceIoPwriteAsyncForDriver ===
-=== vfs_node_func26 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x082AFD7F
+| 3.60 || 0x202CDDE3
-|-
 |}
-<source lang="c">
-int vfs_node_func26(vfs_node *node, void *objectBase, SceIoStat *stat, int bits)
-struct vfs_node_func26_args
+Derived from <code>_sceIoPwriteAsync</code>
-{
-   vfs_node* node;
-   void *objectBase;
-   SceIoStat *stat;
-   int bits;
-}vfs_node_func26_args;
-</source>
+=== sceIoPwriteForDriver ===
-arguments are packed into <code>vfs_node_func26_args</code> and passed to <code>vfs_node_func26</code> callback
-=== vfs_node_func27 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0xF53399BC
+| 3.60 || 0x5F1512C8
-|-
 |}
-<source lang="c">
-int vfs_node_func27(int unk0, vfs_node *node, int unk2, int unk3)
-struct vfs_node_func27_args
+Derived from <code>_sceIoPwrite</code>
-{
-   uint32_t arg0;
-   vfs_node* node;
-   uint32_t arg2;
-   uint32_t arg3;
-   uint32_t unk_10; // zero
-   uint32_t unk_14; // zero
-}vfs_node_func27_args;
+<source lang="C">
+// Return: Number of bytes actually written
+int sceIoPwriteForDriver(SceUID fd, const void *buf, SceSize nbyte, SceOff offset);
 </source>
-arguments are packed into <code>vfs_node_func27_args</code> and passed to <code>vfs_node_func27</code> callback
+=== sceIoReadAsyncForDriver ===
-=== vfs_node_func28 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0x0F7E1718
+| 3.60 || 0x69047C81
-|-
 |}
-<source lang="c">
-int vfs_node_func28(vfs_node *node, int unk1, int unused1, int unused2)
-struct vfs_node_func28_args
+Derived from <code>sceIoReadAsync</code>
-{
-   vfs_node* node;
-   uint32_t arg1;
-   uint32_t unk_8; // zero
-   uint32_t unk_C; // zero
-}vfs_node_func28_args;
-</source>
+=== sceIoRemoveAsyncForDriver ===
-arguments are packed into <code>vfs_node_func28_args</code> and passed to <code>vfs_node_func28</code> callback
-=== vfs_node_func29 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 3.60 || 0xEEAE8B51
+| 3.60 || 0xF9D6507D
-|-
 |}
-<source lang="c">
-int vfs_node_func29(vfs_node *node, int unused, int unk2, int unk3, int arg_0, int arg_4, int arg_8, int arg_C)
-struct vfs_node_func29_args
+Derived from <code>_sceIoRemoveAsync</code>
-{
-   uint32_t unk_0;
-   uint32_t unk_4;
-   uint32_t arg2;
-   uint32_t arg3;
-   uint32_t arg_0;
-   uint32_t arg_4;
-   uint32_t arg_8;
-   uint32_t arg_C;
-}vfs_node_func29_args;
-</source>
+=== sceIoRenameAsyncForDriver ===
-arguments are packed into <code>vfs_node_func29_args</code> and passed to <code>vfs_node_func29</code> callback
-== SceIofilemgr ==
-=== _sceIoDcloseAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xB13031
+| 3.60 || 0xAACBC47A
+|}
+Derived from <code>_sceIoRenameAsync</code>
+=== sceIoRmdirAsyncForDriver ===
+{| class="wikitable"
 |-
-| 3.60 || different NID or not present
+! Version !! NID
 |-
+| 3.60 || 0xF5B0B36C
 |}
-=== _sceIoOpenAsync ===
+Derived from <code>_sceIoRmdirAsync</code>
+=== sceIoRmdirForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x9CD0FC8
+| 3.60 || 0x1CC9C634
-|-
-| 3.60 || 0x9CD0FC8
-|-
 |}
-=== sceIoGetProcessDefaultPriority ===
+Derived from <code>_sceIoRmdir</code>
+<source lang="C">int sceIoRmdirForDriver(const char *dirname);</source>
+=== sceIoSyncByFdAsyncForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xDC4F1BB
+| 3.60 || 0x041209CF
-|-
-| 3.60 || 0xDC4F1BB
-|-
 |}
-=== _sceIoRmdirAsync ===
+Derived from <code>sceIoSyncByFdAsync</code>
+=== not_sceIoSyncByFd_maybe_SyncByFd2ForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x13DC3244
+| 3.60 || 0x43170575
-|-
-| 3.60 || 0x13DC3244
-|-
 |}
-=== sceIoSetPriority ===
+This function is not sceIoSyncByFdForDriver.
+Derived from <code>sceIoSyncByFd</code>
+<source lang="C">int not_sceIoSyncByFd_maybe_SyncByFd2ForDriver(SceUID fd, int flag);</source>
+=== sceIoSyncAsyncForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x14B2D56C
+| 3.60 || 0x4F9EA8B0
-|-
-| 3.60 || 0x14B2D56C
-|-
 |}
-=== sceIoSyncByFd ===
+Derived from <code>_sceIoSyncAsync</code>
+=== sceIoSyncForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x16512F59
+| 3.60 || 0xDDF78594
-|-
-| 3.60 || 0x16512F59
-|-
 |}
-=== _sceIoIoctl ===
+Derived from <code>_sceIoSync</code>
+<source lang="C">int sceIoSyncForDriver(const char *device, unsigned int flag);</source>
+=== sceIoWriteAsyncForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x1D2988F1
+| 3.60 || 0xA1BD13D0
-|-
-| 3.60 || 0x1D2988F1
-|-
 |}
-=== _sceIoLseekAsync ===
+Derived from <code>sceIoWriteAsync</code>
+=== sceIoGetProcessDefaultPriorityForSystemForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x2300858E
+| 0.990-3.60 || 0xCE397158
-|-
-| 3.60 || 0x2300858E
-|-
 |}
-=== sceIoSetPriorityForSystem ===
+=== sceIoSetProcessDefaultPriorityForSystemForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x27373135
+| 0.990-3.60 || 0xABE65071
-|-
-| 3.60 || 0x27373135
-|-
 |}
-=== _sceIoComplete ===
+=== sceIoDopenAsyncForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x34E6A06E
+| 3.60 || 0x72F06BDE
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== sceIoWrite ===
+=== sceIoDcloseAsyncForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x34EFD876
+| 3.60 || 0xC08F199F
-|-
-| 3.60 || 0x34EFD876
-|-
 |}
-<source lang="C">int sceIoWrite(SceUID fd, const void *data, SceSize size);</source>
+=== sceIoDreadAsyncForDriver ===
-=== _sceIoGetThreadDefaultPriorityForSystem ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x36CAF911
+| 3.60 || 0x5982B0E3
-|-
+|}
-| 3.60 || different NID or not present
-|-
-|}
-=== _sceIoSetThreadDefaultPriorityForSystem ===
+=== sceIoCreateMountEventForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x38FE853B
+| 3.60 || 0x2DFA192F
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== sceIoFlockForSystem ===
+Derived from [[SceVshBridge#vshIoCreateMountEvent|vshIoCreateMountEvent]]
+<source lang="C">int sceIoCreateMountEventForDriver(int vshMountId, int flag);</source>
+=== sceIoCreateErrorEventForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x3E98E422
+| 3.60 || 0x3C0343DB
-|-
-| 3.60 || 0x3E98E422
-|-
 |}
-=== _sceIoDevctlAsync ===
+Derived from [[SceVshBridge#vshIoCreateErrorEvent|vshIoCreateErrorEvent]]
+<source lang="C">
+typedef struct sceIoCreateErrorEventForDriverOpt {
+  uint32_t unk_0;
+  uint32_t unk_4;
+  uint32_t unk_8;
+  uint32_t unk_C;
+  uint32_t unk_10;
+  uint32_t unk_14;
+  uint32_t unk_18;
+} sceIoCreateErrorEventForDriverOpt;
+SceUID sceIoCreateErrorEventForDriver(int vshMountId, int flag, sceIoCreateErrorEventForDriverOpt* opt);
+</source>
+=== sceIoClearErrorEventForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x3EE3F66E
+| 3.60 || 0x40B933C7
-|-
-| 3.60 || 0x3EE3F66E
-|-
 |}
-=== sceIoDclose ===
+Derived from [[SceVshBridge#vshIoClearErrorEvent|vshIoClearErrorEvent]]
+<source lang="C">int sceIoClearErrorEventForDriver(SceUID uid);</source>
+=== sceIoDeleteMountEventForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x422A221A
+| 3.60 || 0x43DB0AE4
-|-
-| 3.60 || 0x422A221A
-|-
 |}
-<source lang="C">int sceIoDclose(SceUID fd);</source>
+Derived from [[SceVshBridge#vshIoDeleteMountEvent|vshIoDeleteMountEvent]]
+<source lang="C">int sceIoDeleteMountEventForDriver(SceUID uid);</source>
-=== _sceIoRename ===
+=== sceIoDeleteErrorEventForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x4912F748
+| 3.60 || 0xC6158F8D
-|-
-| 3.60 || 0x4912F748
-|-
 |}
-<source lang="C">
+Derived from [[SceVshBridge#vshIoDeleteErrorEvent|vshIoDeleteErrorEvent]]
-typedef struct sceIoRenameOpt
-{
-  uint32_t unk_0;
-  uint32_t unk_4;
-  uint32_t unk_8;
-  uint32_t unk_C;
-}sceIoRenameOpt;
-int _sceIoRename(const char *oldname, const char *newname, sceIoRenameOpt *opt);
+<source lang="C">int sceIoDeleteErrorEventForDriver(SceUID uid);</source>
-</source>
-=== sceIoLseek32 ===
+=== sceIoSetMountEventForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x49252B9B
+| 0.995-3.60 || 0x39ABDB9E
-|-
-| 3.60 || 0x49252B9B
-|-
 |}
-<source lang="C">int sceIoLseek32(SceUID fd, int offset, int whence);</source>
+Temp name was sceIoInvokeMountEventForDriver.
+<source lang="C">
+/*
+ * (flags & 0x100) != 0 -> mount
+ * (flags & 0x200) != 0 -> unmount
+ */
+int sceIoSetMountEventForDriver(int vshMountId, int flags, int unk2, int unk3);
+</source>
-=== sceIoSetThreadDefaultPriority ===
+=== vfsUnlockMntByMntIdForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x49312108
+| 3.60 || 0x5B7E5AB8
-|-
-| 3.60 || 0x49312108
-|-
 |}
-=== _sceIoDevctl ===
+This is a guessed name.
+Temp name was sceIoUmount2ForDriver.
+<source lang="C">int vfsUnlockMntByMntIdForDriver(int vshMountId);</source>
+=== sceIoSetPathMappingFunctionForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x515AC017
+| 3.60 || 0xCFAECF18
-|-
-| 3.60 || 0x515AC017
-|-
 |}
+Used by [[SceAppMgr]].
+Sets a callback function that does path mapping:
+* function tries to OverlayResolveSync input path
+* checks that it is not a PD path (Pseudo Drive mount point aquired by [[ScePfsMgr]])
+* takes beginning of path until symbol ":"
+* tries to do a lookup by that path copy in data segment [[SceAppMgr#Data_segment_layout|global 0x3470C]] <code>mount_point_data_entry</code> item array
+* if item is found then <code>path</code> from <code>mount_point_data_entry</code> item is copied to <code>result_path</code>
+* in any other case OverlayResolveSync result path is copied to <code>result_path</code>
 <source lang="C">
-typedef struct sceIoDevctlOpt
+typedef int ( SceIoPathMappingFunc)(const char *path, SceUID pid, char *result_path, SceSize size);
-{
-   uint32_t unk_0;
-   uint32_t unk_4;
-   uint32_t unk_8;
-   uint32_t unk_C;
-   uint32_t unk_10;
-   uint32_t unk_14;
-}sceIoDevctlOpt;
-int _sceIoDevctl(const char *dev, unsigned int cmd, void *indata, sceIoDevctlOpt *args, int inlen, void *outdata, int outlen);
+int sceIoSetPathMappingFunctionForDriver(SceIoPathMappingFunc *func);
 </source>
-=== sceIoGetstatByFdAsync ===
+=== sceIoGetMediaTypeForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x5167AC1E
+| 0.990-3.60 || 0x9C220246
+|}
+Was wrongly named sceIoGetPathIdExForDriver.
+May also call callback function set by [[SceIofilemgr#sceIoSetPathMappingFunctionForDriver|sceIoSetPathMappingFunctionForDriver]].
+This callback function does path mapping since result in result_path is passed to [[SceSblACMgr#sceSblACMgrGetMediaTypeForKernel|sceSblACMgrGetMediaTypeForKernel]].
+<source lang="C">int sceIoGetMediaTypeForDriver(SceUID pid, const char *path, int ignored, int *media_type);</source>
+=== sceIoGetThreadDefaultPriorityForSystemForDriver ===
+{| class="wikitable"
 |-
-| 3.60 || 0x5167AC1E
+! Version !! NID
 |-
+| 3.60 || 0x6D0FEDB6
 |}
-=== _sceIoPread ===
+<source lang="C">int sceIoGetThreadDefaultPriorityForSystemForDriver(void);</source>
+=== sceIoSetThreadDefaultPriorityForSystemForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x539FD5C4
+| 3.60 || 0x3F0FF9D5
-|-
-| 3.60 || 0x539FD5C4
-|-
 |}
-=== _sceIoGetstatByFdAsync ===
+=== sceIoGetRemoteKPLSDataForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x554292F0
+| 3.60 || 0x44EDCE57
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== _sceIoChstatByFdAsync ===
+This is a guessed name.
+<source lang="C">int sceIoGetRemoteKPLSDataForDriver(SceUID pid, void *dst);</source>
+=== sceIoSetProcessFileOpenMaxNumberForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x58010F40
+| 3.60 || 0xAC0E9AAA
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== _sceIoGetThreadDefaultPriority ===
+<source lang="C">int sceIoSetProcessFileOpenMaxNumberForDriver(SceUID pid, SceSize number);</source>
+=== sceIoSetProcessDirOpenMaxLevelForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x5DC29460
+| 3.60 || 0x03F6A684
+|}
+<source lang="C">int sceIoSetProcessDirOpenMaxLevelForDriver(SceUID pid, SceSize level);</source>
+=== sceIoCompleteForDriver ===
+{| class="wikitable"
 |-
-| 3.60 || different NID or not present
+! Version !! NID
 |-
+| 3.60 || 0x8F0DE34D
 |}
-=== _sceIoSync ===
+<source lang="C">int sceIoCompleteForDriver(SceUID fd);</source>
+=== sceIoGetPriorityForSystemForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x5DD867F7
+| 3.60 || 0x9FCDCE62
-|-
-| 3.60 || 0x5DD867F7
-|-
 |}
-<source lang="C">
+<source lang="C">int sceIoGetPriorityForSystemForDriver(SceUID a1);</source>
-typedef struct sceIoSyncOpt
-{
-  uint32_t unk_0;
-  uint32_t unk_4;
-}sceIoSyncOpt;
-int _sceIoSync(const char* device, unsigned int unk, sceIoSyncOpt* opt);
-</source>
+=== sceIoSetPriorityForSystemForDriver ===
-=== _sceIoRemoveAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x5FFA47E2
+| 3.60 || 0xCCE94599
-|-
-| 3.60 || 0x5FFA47E2
-|-
 |}
-=== _sceIoDreadAsync ===
+<source lang="C">int sceIoSetPriorityForSystemForDriver(SceUID a1, int a2);</source>
+=== sceIoSetErrorEventForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x64B233B8
+| 0.995-3.60 || 0xDD46CD63
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== _sceIoSetThreadDefaultPriority ===
+Previously (wrongfully) called sceIoGetGUIDErrorEventListForDriver.
+=== sceIoSetDebuggerCallbackForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x654E27B1
+| 3.60 || 0xF4F8C59A
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== _sceIoSyncByFdAsync ===
+=== sceIoGetGUIDFdListForDebuggerForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x6F78FAFE
+| 3.60 || 0xdcf75f6d
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== _sceIoGetPriorityForSystem ===
+=== sceIoGetPUIDFdListForDebuggerForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x70B7BB52
+| 3.60 || 0xd493274
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== sceIoReadAsync ===
+=== sceIoGetFileInfoForDriver ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x773EBD45
+| 3.60 || 0xa1ef2648
-|-
-| 3.60 || 0x773EBD45
-|-
 |}
-=== _sceIoRemove ===
+This is a guessed name.
+=== SceIofilemgrForDriver_12F8D58E ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x78955C65
+| 3.60 || 0x12F8D58E
-|-
-| 3.60 || 0x78955C65
-|-
 |}
-<source lang="C">
+get some value
-typedef struct sceIoRemoveOpt
-{
-  uint32_t unk_0;
-  uint32_t unk_4;
-}sceIoRemove;
-int _sceIoRemove(const char *file, sceIoRemoveOpt* opt);
-</source>
-=== sceIoSyncByFdAsync ===
+=== SceIofilemgrForDriver_15C17487 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x7E1367CB
+| 0.996.090-3.740.011 || 0x15C17487
-|-
-| 3.60 || 0x7E1367CB
-|-
 |}
-=== sceIoSetProcessDefaultPriority ===
+A possible name is sceIoSchedulerIssueAnotherIoRequestForDriver.
+<source lang="C">int SceIofilemgrForDriver_15C17487(int io_device_code);</source>
+=== SceIofilemgrForDriver_2EFDFA12 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x7F2ABBAF
+| 3.60 || 0x2EFDFA12
-|-
-| 3.60 || 0x7F2ABBAF
-|-
 |}
-=== _sceIoRenameAsync ===
+set path by flags?
+<source>int SceIofilemgrForDriver_2EFDFA12(SceUID fd, char *path);</source>
+=== SceIofilemgrForDriver_3675ECB9 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x81794921
+| 3.60 || 0x3675ECB9
+|}
+could be sceIoSchedDispatcherFsResourceUnavailableForDriver.
+some node op. dec ctr.
+=== SceIofilemgrForDriver_3A79FAC9 ===
+{| class="wikitable"
 |-
-| 3.60 || 0x81794921
+! Version !! NID
 |-
+| 3.60 || 0x3A79FAC9
 |}
-=== _sceIoSyncAsync ===
+delete fd by flags
+<source>int SceIofilemgrForDriver_3A79FAC9(SceUID fd);</source>
+=== SceIofilemgrForDriver_6BEEDDB4 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x86DB0C0E
+| 3.60 || 0x6BEEDDB4
+|}
+setting some to fd of dir entry
+<source>int SceIofilemgrForDriver_6BEEDDB4(SceUID fd, int a2);</source>
+=== SceIofilemgrForDriver_B499287E ===
+{| class="wikitable"
 |-
-| 3.60 || 0x86DB0C0E
+! Version !! NID
 |-
+| 3.60 || 0xB499287E
 |}
-=== _sceIoDread ===
+delete some puid from a1
+<source>int SceIofilemgrForDriver_B499287E(void *a1, int n, int *num);</source>
+=== SceIofilemgrForDriver_C722DF35 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x8713D662
+| 3.60 || 0xC722DF35
+|}
+some node op. inc ctr.
+=== sceIoSyncByFdForDriver ===
+{| class="wikitable"
 |-
-| 3.60 || 0x8713D662
+! Version !! NID
 |-
+| 3.60 || 0x338dcd68
 |}
-<source lang="C">int _sceIoDread(SceUID fd, SceIoDirent *dir);</source>
+== SceIofilemgr ==
-=== _sceIoWrite ===
+=== _sceIoDcloseAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x8C319CF0
+| 1.69 || 0x00B13031
 |-
 | 3.60 || different NID or not present
-|-
 |}
-=== _sceIoGetstat ===
+=== _sceIoOpenAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x8E7E11F2
+| 1.69-3.60 || 0x09CD0FC8
-|-
-| 3.60 || 0x8E7E11F2
-|-
 |}
-<source lang="C">
+=== sceIoGetProcessDefaultPriority ===
-struct sceIoGetstatOpt
-{
-  uint32_t unk_0;
-  uint32_t unk_4;
-};
-int _sceIoGetstat(const char *file, SceIoStat *stat, sceIoGetstatOpt *opt);
-</source>
-=== sceIoCloseAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x8EA3616A
+| 1.69-3.60 || 0x0DC4F1BB
+|}
+=== _sceIoRmdirAsync ===
+{| class="wikitable"
 |-
-| 3.60 || 0x8EA3616A
+! Version !! NID
 |-
+| 1.69-3.60 || 0x13DC3244
 |}
-=== _sceIoMkdir ===
+=== sceIoSetPriority ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x8F1ACC32
+| 1.69-3.60 || 0x14B2D56C
+|}
+=== sceIoSyncByFd ===
+{| class="wikitable"
 |-
-| 3.60 || 0x8F1ACC32
+! Version !! NID
 |-
+| 1.69-3.60 || 0x16512F59
 |}
-<source lang="C">
+<source lang="C">int sceIoSyncByFd(SceUID fd, unsigned int unk);</source>
-typedef struct sceIoMkdirOpt
-{
-  uint32_t unk_0;
-  uint32_t unk_4;
-}sceIoMkdirOpt;
-int _sceIoMkdir(const char *dir, SceMode mode, sceIoMkdirOpt opt);
+=== _sceIoIoctl ===
-</source>
-=== _sceIoCompleteMultiple ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x9111D004
+| 1.69-3.60 || 0x1D2988F1
-|-
-| 3.60 || 0x9111D004
-|-
 |}
-=== _sceIoLseek32 ===
+=== _sceIoLseekAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x92BDA6DA
+| 1.69-3.60 || 0x2300858E
+|}
+=== sceIoSetPriorityForSystem ===
+{| class="wikitable"
 |-
-| 3.60 || different NID or not present
+! Version !! NID
 |-
+| 1.69-3.60 || 0x27373135
 |}
-=== _sceIoPwrite ===
+=== _sceIoComplete ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x9654094B
+| 1.69 || 0x34E6A06E
+|-
+| 3.60 || different NID or not present
+|}
+=== sceIoWrite ===
+{| class="wikitable"
 |-
-| 3.60 || 0x9654094B
+! Version !! NID
 |-
+| 1.69-3.60 || 0x34EFD876
 |}
-=== _sceIoGetPriority ===
+<source lang="C">int sceIoWrite(SceUID fd, const void *data, SceSize size);</source>
+=== _sceIoGetThreadDefaultPriorityForSystem ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0x9E3F880D
+| 1.69 || 0x36CAF911
 |-
 | 3.60 || different NID or not present
-|-
 |}
-=== sceIoGetThreadDefaultPriority ===
+=== _sceIoSetThreadDefaultPriorityForSystem ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xA176CD03
+| 0.990-1.69 || 0x38FE853B
-|-
-| 3.60 || 0xA176CD03
 |-
+| 3.60 || different NID or not present
 |}
-=== _sceIoLseek ===
+=== sceIoFlockForSystem ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xA604764A
+| 1.69-3.60 || 0x3E98E422
-|-
-| 3.60 || 0xA604764A
-|-
 |}
-<source lang="C">
+=== _sceIoDevctlAsync ===
-typedef struct _sceIoLseekOpt //size is 0x10
-{
-  SceOff offset;
-  int whence;
-  uint32_t unk;
-}_sceIoLseekOpt;
-SceOff _sceIoLseek(SceUID fd, _sceIoLseekOpt* opt);
-</source>
-=== sceIoChstatByFdAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xA9F89275
+| 1.69-3.60 || 0x3EE3F66E
-|-
-| 3.60 || 0xA9F89275
-|-
 |}
-=== _sceIoGetProcessDefaultPriority ===
+=== sceIoDclose ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xB0486482
+| 1.69-3.60 || 0x422A221A
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== _sceIoSetPriority ===
+<source lang="C">int sceIoDclose(SceUID fd);</source>
-{| class="wikitable"
-|-
-! Version !! NID
-|-
-| 1.69 || 0xB14192F0
-|-
-| 3.60 || different NID or not present
-|-
-|}
-=== _sceIoReadAsync ===
+=== _sceIoRename ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xB2B891E6
+| 1.69-3.60 || 0x4912F748
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== _sceIoPwriteAsync ===
+<source lang="C">
+typedef struct sceIoRenameOpt {
+  uint32_t unk_0;
+  uint32_t unk_4;
+  uint32_t unk_8;
+  uint32_t unk_C;
+} sceIoRenameOpt;
+int _sceIoRename(const char *oldname, const char *newname, sceIoRenameOpt *opt);
+</source>
+=== sceIoLseek32 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xB2D0B2F4
+| 1.69-3.60 || 0x49252B9B
-|-
-| 3.60 || 0xB2D0B2F4
-|-
 |}
-=== _sceIoChstatAsync ===
+<source lang="C">int sceIoLseek32(SceUID fd, int offset, int whence);</source>
+=== sceIoSetThreadDefaultPriority ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xB4B021D9
+| 1.69-3.60 || 0x49312108
-|-
-| 3.60 || 0xB4B021D9
-|-
 |}
-=== sceIoSetThreadDefaultPriorityForSystem ===
+=== _sceIoDevctl ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xB9C9C9CF
+| 1.000.071-3.740.011 || 0x515AC017
-|-
-| 3.60 || 0xB9C9C9CF
-|-
 |}
-=== _sceIoPreadAsync ===
+This performs device-specific operations. The details of the operations are driver-dependent.
+This is a wrapper for [[#sceIoDevctlForDriver|sceIoDevctlForDriver]].
+<source lang="C">
+/*
+Arguments:
+devname     Specified device ("<devname><unit>:")
+cmd     Command code
+arg     Pointer to device-driver-dependent parameter block
+arglen     Number of bytes in device-driver-dependent parameter block
+bufp     Pointer to return data storage block
+buflen     Size of return data storage block
+Return Values:
+Non-negative (N>=0) Success (driver-dependent)
+<0 Error, e.g. SCE_ERROR_ERRNO_EMFILE, SCE_ERROR_ERRNO_ENODEV, SCE_ERROR_ERRNO_EUNSUP
+*/
+typedef struct SceIoDevctlOpt { // size is 0x18
+    SceSize arglen; // Number of bytes in device-driver-dependent parameter block
+    void *bufp; // Pointer to return data storage block
+    SceSize buflen; // Size of return data storage block
+    char reserved[0xC];
+} SceIoDevctlOpt;
+int _sceIoDevctl(
+    const char *devname,
+    int cmd,
+    const void *arg,
+    const SceIoDevctlOpt *pOpt
+);
+</source>
+=== sceIoGetstatByFdAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xBCF5684D
+| 1.69-3.60 || 0x5167AC1E
+|}
+=== _sceIoPread ===
+{| class="wikitable"
 |-
-| 3.60 || 0xBCF5684D
+! Version !! NID
 |-
+| 1.69-3.60 || 0x539FD5C4
 |}
-=== sceIoDopenAsync ===
+<source lang="C">
+typedef struct sceIoPreadOpt {
+   SceOff offset;
+   uint32_t unk_8;
+   uint32_t unk_C;
+} sceIoPreadOpt;
+int _sceIoPread(SceUID uid, void *buffer, SceSize size, sceIoPreadOpt *opt);
+// 3.60
+typedef struct SceIoPreadSyscallArgs {
+	void *buf;
+	SceSize nbyte;
+	SceOff offset;
+} SceIoPreadSyscallArgs;
+SceSSize _sceIoPread(SceUID fd, SceIoPreadSyscallArgs *args);
+</source>
+=== _sceIoGetstatByFdAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xC49C312F
+| 1.69 || 0x554292F0
-|-
-| 3.60 || 0xC49C312F
 |-
+| 3.60 || different NID or not present
 |}
-=== sceIoClose ===
+=== _sceIoChstatByFdAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xC70B8886
+| 1.69 || 0x58010F40
-|-
-| 3.60 || 0xC70B8886
 |-
+| 3.60 || different NID or not present
 |}
-<source lang="C"> int sceIoClose(SceUID fd);</source>
+=== _sceIoGetThreadDefaultPriority ===
-=== _sceIoWriteAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xC92AF88F
+| 1.69 || 0x5DC29460
 |-
 | 3.60 || different NID or not present
-|-
 |}
-=== _sceIoOpen ===
+=== _sceIoSync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xCC67B6FD
+| 1.69-3.60 || 0x5DD867F7
-|-
-| 3.60 || 0xCC67B6FD
-|-
 |}
 <source lang="C">
-struct sceIoOpenOpt
+typedef struct sceIoSyncOpt {
-{
    uint32_t unk_0;
    uint32_t unk_4;
-};
+} sceIoSyncOpt;
-SceUID _sceIoOpen(const char *file, int flags, SceMode mode, sceIoOpenOpt *opt);
+int _sceIoSync(const char* device, unsigned int unk, sceIoSyncOpt* opt);
 </source>
-=== sceIoCancel ===
+=== _sceIoRemoveAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xCEF48835
+| 1.69-3.60 || 0x5FFA47E2
-|-
-| 3.60 || 0xCEF48835
-|-
 |}
-=== sceIoComplete ===
+=== _sceIoDreadAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xD1C49D2F
+| 1.69 || 0x64B233B8
-|-
-| 3.60 || 0xD1C49D2F
 |-
+| 3.60 || different NID or not present
 |}
-=== _sceIoChstat ===
+=== _sceIoSetThreadDefaultPriority ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xD2EE455F
+| 0.990-1.69 || 0x654E27B1
-|-
-| 3.60 || 0xD2EE455F
 |-
+| 3.60 || different NID or not present
 |}
-<source lang="C">
+=== _sceIoSyncByFdAsync ===
-struct sceIoChstatOpt
-{
-  uint32_t unk_0;
-  uint32_t unk_4;
-};
-int _sceIoChstat(const char *file, SceIoStat *stat, int bits, sceIoChstatOpt *opt);
-</source>
-=== _sceIoSetProcessDefaultPriority ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xD302DCB9
+| 1.69 || 0x6F78FAFE
 |-
 | 3.60 || different NID or not present
-|-
 |}
-=== _sceIoGetstatAsync ===
+=== _sceIoGetPriorityForSystem ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xD414C89F
+| 1.69 || 0x70B7BB52
-|-
-| 3.60 || 0xD414C89F
 |-
+| 3.60 || different NID or not present
 |}
-=== sceIoDcloseAsync ===
+=== sceIoReadAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xDC2D7D38
+| 1.69-3.60 || 0x773EBD45
+|}
+=== _sceIoRemove ===
+{| class="wikitable"
 |-
-| 3.60 || 0xDC2D7D38
+! Version !! NID
 |-
+| 1.69-3.60 || 0x78955C65
 |}
-=== _sceIoIoctlAsync ===
+<source lang="C">
+typedef struct sceIoRemoveOpt {
+  uint32_t unk_0;
+  uint32_t unk_4;
+} sceIoRemoveOpt;
+int _sceIoRemove(const char *filename, sceIoRemoveOpt* opt);
+</source>
+=== sceIoSyncByFdAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xE00DC256
+| 1.69-3.60 || 0x7E1367CB
-|-
-| 3.60 || 0xE00DC256
-|-
 |}
-=== _sceIoChstatByFd ===
+=== sceIoSetProcessDefaultPriority ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xE0BE2A30
+| 1.69-3.60 || 0x7F2ABBAF
-|-
-| 3.60 || 0xE0BE2A30
-|-
 |}
-<source lang="C"> int _sceIoChstatByFd(SceUID fd, SceIoStat *stat, int bits); </source>
+=== _sceIoRenameAsync ===
-=== sceIoWriteAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xE0D63D2A
+| 1.69-3.60 || 0x81794921
-|-
-| 3.60 || 0xE0D63D2A
-|-
 |}
-=== _sceIoGetstatByFd ===
+=== _sceIoSyncAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xE6C53567
+| 1.69-3.60 || 0x86DB0C0E
-|-
-| 3.60 || 0xE6C53567
-|-
 |}
-<source lang="C">int _sceIoGetstatByFd(SceUID fd, SceIoStat *stat);</source>
+=== _sceIoDread ===
-=== _sceIoSetPriorityForSystem ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xE6C923B3
+| 1.69-3.60 || 0x8713D662
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== _sceIoDopen ===
+<source lang="C">int _sceIoDread(SceUID fd, SceIoDirent *dir);</source>
+=== _sceIoWrite ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xE6E614B5
+| 1.69 || 0x8C319CF0
 |-
-| 3.60 || 0xE6E614B5
+| 3.60 || different NID or not present
+|}
+=== _sceIoGetstat ===
+{| class="wikitable"
+|-
+! Version !! NID
 |-
+| 1.69-3.60 || 0x8E7E11F2
 |}
 <source lang="C">
-struct sceIoDopenOpt
+typedef struct sceIoGetstatOpt {
-{
    uint32_t unk_0;
    uint32_t unk_4;
-};
+} sceIoGetstatOpt;
-SceUID _sceIoDopen(const char *dirname, sceIoDopenOpt *opt);
+int _sceIoGetstat(const char *name, SceIoStat *buf, sceIoGetstatOpt *opt);
 </source>
-=== sceIoGetPriorityForSystem ===
+=== sceIoCloseAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xEF5432ED
+| 1.69-3.60 || 0x8EA3616A
-|-
-| 3.60 || 0xEF5432ED
-|-
 |}
-=== sceIoGetPriority ===
+=== _sceIoMkdir ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xF2A472A1
+| 1.69-3.60 || 0x8F1ACC32
-|-
-| 3.60 || 0xF2A472A1
-|-
 |}
-=== _sceIoRead ===
+<source lang="C">
+typedef struct sceIoMkdirOpt {
+  uint32_t unk_0;
+  uint32_t unk_4;
+} sceIoMkdirOpt;
+int _sceIoMkdir(const char *dirname, SceIoMode mode, sceIoMkdirOpt opt);
+</source>
+=== _sceIoCompleteMultiple ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xF3C9E783
+| 1.69-3.60 || 0x9111D004
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== _sceIoSyncByFd ===
+=== _sceIoLseek32 ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xF437545D
+| 1.69 || 0x92BDA6DA
 |-
 | 3.60 || different NID or not present
-|-
 |}
-=== _sceIoCloseAsync ===
+=== _sceIoPwrite ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xF4E13260
+| 1.69-3.60 || 0x9654094B
-|-
-| 3.60 || different NID or not present
-|-
 |}
-=== _sceIoDopenAsync ===
+<source lang="C">
+typedef struct sceIoPwriteOpt {
+   SceOff offset;
+   uint32_t unk_8;
+   uint32_t unk_C;
+} sceIoPwriteOpt;
+int _sceIoPwrite(SceUID uid, const void *data, int size, sceIoPwriteOpt *opt);
+// 3.60
+typedef struct SceIoPwriteSyscallArgs {
+	const void *buf;
+	SceSize nbyte;
+	SceOff offset;
+} SceIoPwriteSyscallArgs;
+SceSSize _sceIoPwrite(SceUID fd, SceIoPwriteSyscallArgs *args);
+</source>
+=== _sceIoGetPriority ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xF58286C3
+| 1.69 || 0x9E3F880D
 |-
 | 3.60 || different NID or not present
-|-
 |}
-=== sceIoDreadAsync ===
+=== sceIoGetThreadDefaultPriority ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xF59F37B0
+| 1.69-3.60 || 0xA176CD03
-|-
-| 3.60 || 0xF59F37B0
-|-
 |}
-=== _sceIoMkdirAsync ===
+=== _sceIoLseek ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xF5C58B21
+| 1.69-3.60 || 0xA604764A
-|-
-| 3.60 || 0xF5C58B21
-|-
 |}
-=== _sceIoCancel ===
+<source lang="C">
+typedef struct _sceIoLseekOpt { // size is 0x10
+  SceOff offset;
+  int whence;
+  uint32_t unk;
+} _sceIoLseekOpt;
+SceOff _sceIoLseek(SceUID fd, _sceIoLseekOpt* opt);
+// 3.60
+typedef struct SceIoLseekSyscallArgs {
+	SceOff offset;
+	int whence;
+	int padding;
+} SceIoLseekSyscallArgs;
+SceOff _sceIoLseek(SceUID fd, SceIoLseekSyscallArgs *args);
+</source>
+=== sceIoChstatByFdAsync ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xA9F89275
+|}
+=== _sceIoGetProcessDefaultPriority ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xF5DEEA19
+| 1.69 || 0xB0486482
 |-
 | 3.60 || different NID or not present
-|-
 |}
-=== _sceIoClose ===
+=== _sceIoSetPriority ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xF69FB394
+| 0.990-1.69 || 0xB14192F0
 |-
 | 3.60 || different NID or not present
-|-
 |}
-=== _sceIoDclose ===
+=== _sceIoReadAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xFAFF0002
+| 1.69 || 0xB2B891E6
 |-
 | 3.60 || different NID or not present
-|-
 |}
-=== sceIoGetThreadDefaultPriorityForSystem ===
+=== _sceIoPwriteAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xFCBCEAED
+| 1.69-3.60 || 0xB2D0B2F4
-|-
+|}
-| 3.60 || 0xFCBCEAED
-|-
+=== _sceIoChstatAsync ===
-|}
+{| class="wikitable"
+|-
-=== sceIoRead ===
+! Version !! NID
-{| class="wikitable"
+|-
-|-
+| 1.69-3.60 || 0xB4B021D9
-! Version !! NID
+|}
-|-
-| 1.69 || 0xFDB32293
+=== sceIoSetThreadDefaultPriorityForSystem ===
-|-
+{| class="wikitable"
-| 3.60 || 0xFDB32293
+|-
-|-
+! Version !! NID
-|}
+|-
+| 1.69-3.60 || 0xB9C9C9CF
-<source lang="C">sceIoRead(SceUID fd, void *data, SceSize size);</source>
+|}
-=== _sceIoRmdir ===
+=== _sceIoPreadAsync ===
 {| class="wikitable"
 |-
 ! Version !! NID
 |-
-| 1.69 || 0xFFFB4D76
+| 1.69-3.60 || 0xBCF5684D
-|-
+|}
-| 3.60 || 0xFFFB4D76
-|-
+=== sceIoDopenAsync ===
-|}
+{| class="wikitable"
+|-
-<source lang="C">
+! Version !! NID
-typedef struct sceIoRmdirOpt
+|-
-{
+| 1.69-3.60 || 0xC49C312F
-   uint32_t unk_0;
+|}
-   uint32_t unk_4;
-}sceIoRmdirOpt;
+=== sceIoClose ===
+{| class="wikitable"
-int _sceIoRmdir(const char *path, sceIoRmdirOpt* opt);
+|-
-</source>
+! Version !! NID
+|-
-== Device Drivers ==
+| 1.69-3.60 || 0xC70B8886
+|}
+<source lang="C">int sceIoClose(SceUID fd);</source>
+=== _sceIoWriteAsync ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69 || 0xC92AF88F
+|-
+| 3.60 || different NID or not present
+|}
+=== _sceIoOpen ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xCC67B6FD
+|}
+<source lang="C">
+typedef struct sceIoOpenOpt {
+  uint32_t unk_0;
+  uint32_t unk_4;
+} sceIoOpenOpt;
+SceUID _sceIoOpen(const char *filename, int flag, SceIoMode mode, sceIoOpenOpt *opt);
+</source>
+=== sceIoCancel ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xCEF48835
+|}
+=== sceIoComplete ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xD1C49D2F
+|}
+=== _sceIoChstat ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xD2EE455F
+|}
+<source lang="C">
+typedef struct sceIoChstatOpt {
+  uint32_t unk_0;
+  uint32_t unk_4;
+} sceIoChstatOpt;
+int _sceIoChstat(const char *name, const SceIoStat *stat, unsigned int cbit, sceIoChstatOpt *opt);
+</source>
+=== _sceIoSetProcessDefaultPriority ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 0.990-1.69 || 0xD302DCB9
+|-
+| 3.60 || different NID or not present
+|}
+=== _sceIoGetstatAsync ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xD414C89F
+|}
+=== sceIoDcloseAsync ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xDC2D7D38
+|}
+=== _sceIoIoctlAsync ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xE00DC256
+|}
+=== _sceIoChstatByFd ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xE0BE2A30
+|}
+<source lang="C">int _sceIoChstatByFd(SceUID fd, const SceIoStat *buf, unsigned int cbit);</source>
+=== sceIoWriteAsync ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xE0D63D2A
+|}
+=== _sceIoGetstatByFd ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xE6C53567
+|}
+<source lang="C">int _sceIoGetstatByFd(SceUID fd, SceIoStat *stat);</source>
+=== _sceIoSetPriorityForSystem ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 0.990-1.69 || 0xE6C923B3
+|-
+| 3.60 || different NID or not present
+|}
+=== _sceIoDopen ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xE6E614B5
+|}
+<source lang="C">
+typedef struct sceIoDopenOpt {
+  uint32_t unk_0;
+  uint32_t unk_4;
+} sceIoDopenOpt;
+SceUID _sceIoDopen(const char *dirname, sceIoDopenOpt *opt);
+</source>
+=== sceIoGetPriorityForSystem ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xEF5432ED
+|}
+=== sceIoGetPriority ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xF2A472A1
+|}
+=== _sceIoRead ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || different NID or not present
+|}
+=== _sceIoSyncByFd ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || different NID or not present
+|}
+=== _sceIoCloseAsync ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || different NID or not present
+|}
+=== _sceIoDopenAsync ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || different NID or not present
+|}
+=== sceIoDreadAsync ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xF59F37B0
+|}
+=== _sceIoMkdirAsync ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xF5C58B21
+|}
+=== _sceIoCancel ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69 || 0xF5DEEA19
+|-
+| 3.60 || different NID or not present
+|}
+=== _sceIoClose ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69 || 0xF69FB394
+|-
+| 3.60 || different NID or not present
+|}
+=== _sceIoDclose ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 0.990-1.69 || 0xFAFF0002
+|-
+| 3.60 || different NID or not present
+|}
+=== sceIoGetThreadDefaultPriorityForSystem ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xFCBCEAED
+|}
+=== sceIoRead ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xFDB32293
+|}
+<source lang="C">sceIoRead(SceUID fd, void *data, SceSize size);</source>
+=== _sceIoRmdir ===
+{| class="wikitable"
+|-
+! Version !! NID
+|-
+| 1.69-3.60 || 0xFFFB4D76
+|}
+<source lang="C">
+typedef struct sceIoRmdirOpt {
+   uint32_t unk_0;
+   uint32_t unk_4;
+} sceIoRmdirOpt;
+int _sceIoRmdir(const char *dirname, sceIoRmdirOpt* opt);
+</source>
+== Device Drivers ==
+[[Category:ARM]]
+[[Category:Kernel]]
 [[Category:Modules]]
-[[Category:Kernel]]
+[[Category:Library]]