CARDReadAsync

C Specification

#include <revolution/card.h>

#define CARD_READ_SIZE      512

typedef void (*CARDCallback)( s32 chan, s32 result );

s32 CARDReadAsync(CARDFileInfo* fileInfo, void* buf, s32 length, s32 offset,
CARDCallback callback );

Arguments

`fileInfo`	Pointer to the file info of the file to read. `fileInfo` must be valid file info initialized with the `CARD[Fast]Open` or `CARDCreate[Async]` function.
`buf`	Buffer address (32-byte alignment).
`length`	Number of bytes to read (multiple of `CARD_READ_SIZE`).
`offset`	The position of the file to start read (multiple of `CARD_READ_SIZE`).
`callback`	Callback function to notify about the result.

Return Values

One of the following codes:

CARD_RESULT_FATAL_ERROR CARD_RESULT_NOCARD CARD_RESULT_BUSY CARD_RESULT_NOFILE CARD_RESULT_NOPERM CARD_RESULT_LIMIT CARD_RESULT_CANCELED CARD_RESULT_READY

Description

Asynchronously reads data from a file.

Revision History