Driver interface to IoFileMgr

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Detailed Description

This module contains the imports for the kernel's IO routines.

Data Structures
struct	PspIoDrvArg
	Structure passed to the init and exit functions of the io driver system. More...
struct	PspIoDrvFileArg
	Structure passed to the file functions of the io driver system. More...
struct	PspIoDrvFuncs
	Structure to maintain the file driver pointers. More...
struct	PspIoDrv
Functions
int	sceIoAddDrv (PspIoDrv *drv)
	Adds a new IO driver to the system.
int	sceIoDelDrv (const char *drv_name)
	Deletes a IO driver from the system.
int	sceIoReopen (const char *file, int flags, SceMode mode, SceUID fd)
	Reopens an existing file descriptor.
int	sceIoGetThreadCwd (SceUID uid, char *dir, int len)
	Get the current working directory for a thread.
int	sceIoChangeThreadCwd (SceUID uid, char *dir)
	Set the current working directory for a thread.

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Function Documentation

int sceIoAddDrv

(

PspIoDrv *

drv

)

Adds a new IO driver to the system.

Note:

This is only exported in the kernel version of IoFileMgr

Parameters:

drv

- Pointer to a filled out driver structure

Returns:

< 0 on error.

Example:

 PspIoDrvFuncs host_funcs = { ... };
 PspIoDrv host_driver = { "host", 0x10, 0x800, "HOST", &host_funcs };
 sceIoDelDrv("host");
 sceIoAddDrv(&host_driver);

int sceIoChangeThreadCwd	(	SceUID	uid,
		char *	dir
	)

Set the current working directory for a thread.

Parameters:

	uid	- The UID of the thread
	dir	- The directory to set

Returns:

0 on success, < 0 on error

int sceIoDelDrv

(

const char *

drv_name

)

Deletes a IO driver from the system.

Note:

This is only exported in the kernel version of IoFileMgr

Parameters:

drv_name

- Name of the driver to delete.

Returns:

< 0 on error

int sceIoGetThreadCwd	(	SceUID	uid,
		char *	dir,
		int	len
	)

Get the current working directory for a thread.

Parameters:

	uid	- The UID of the thread
	dir	- A character buffer in which to store the cwd
	len	- The length of the buffer

Returns:

Number of characters written to buf, if no cwd then 0 is returned.

int sceIoReopen	(	const char *	file,
		int	flags,
		SceMode	mode,
		SceUID	fd
	)

Reopens an existing file descriptor.

Parameters:

	file	- The new file to open.
	flags	- The open flags.
	mode	- The open mode.
	fd	- The old filedescriptor to reopen

Returns:

< 0 on error, otherwise the reopened fd.

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