Function

nuContPakFileReadWrite

Syntax

s32 nuContPakFileReadWrite(NUContPakFile *file, s32 offset, s32 size, u8* buf, u32 mode)

Arguments

*file      Controller Pak structure

offset     read/write offset position

size       read/write size

*buf       buffer where read data is to be stored or the buffer where data to be written is stored

mode       specifies whether to read or write
           NU_CONT_PAK_READ    Read data
           NU_CONT_PAK_WRITE   Write data

Return Value

Error

Description

Read/write Controller Pak game note's game data

Reads game data from Controller Pak's game note or writes game data to the Controller Pak's game note. "file" specifies the Controller Pak structure in the game note opened by the nuContPakFileOpen function in the device opened by the nuContPakOpen function. "size" bytes of data are read or written starting from the "offset" position.

When NU_CONT_PAK_READ is specified for the mode, data is read into the area specified with "buf." When NU_CONT_PAK_WRITE is specified for the mode, the data specified with "buf" is written to the Controller Pak. Both "offset" and "size" must be multiples of 32 and they must be smaller than the file size.

The value returned from the osPfsFileReadWrite function is stored in file.error.

Errors

PFS_ERR_NOPACK	Nothing is inserted in the specified Controller.
PFS_ERR_NEW_PACK	The Controller Pak may have been changed. Please perform the Open process again.
PFS_ERR_INCONSISTENT	There is an inconsistency in the file system management area.
PFS_ERR_CONTRFAIL	Data transfer with Controller has failed.
PFS_ERR_INVALID	Invalid parameter or the game note does not exist.
PFS_ERR_BAD_DATA	An attempt was made to read from a game note containing no data.

See Also

nuContPakOpen, nuContPakFileOpen, nuContPakFileOpenJis, nuContPakFileRead, nuContPakFileWrite, nuContPakFileFread, and nuContPakFileFwrite