Sacado de la doc de pspsdk:
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Function Documentation
int sceIoAssign ( const char * dev1,
const char * dev2,
const char * dev3,
int mode,
void * unk1,
long unk2
)
Assigns one IO device to another (I guess).
Parameters:
dev1 - The device name to assign.
dev2 - The block device to assign from.
dev3 - The filesystem device to mape the block device to dev1
mode - Read/Write mode. One of IoAssignPerms.
unk1 - Unknown, set to NULL.
unk2 - Unknown, set to 0.
Returns:
< 0 on error.
Example: Reassign flash0 in read/write mode.
sceIoUnassign("flash0");
sceIoAssign("flash0", "lflash0:0,0", "fatflash0:", IOASSIGN_RDWR, NULL, 0);
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Es una prueba para ver si se puede asignar la flash0 en modo lectura/escritura. Da 0, asi que va bien la cosa.