-DSTATUS disk_initialize (BYTE drv);
-DSTATUS disk_status (BYTE drv);
-DRESULT disk_read (BYTE drv, BYTE* buff, DWORD sector, UINT count);
-#if _USE_WRITE
-DRESULT disk_write (BYTE drv, const BYTE* buff, DWORD sector, UINT count);
-#endif
-#if _USE_IOCTL
-DRESULT disk_ioctl (BYTE drv, BYTE cmd, void* buff);
-#endif
+DSTATUS disk_initialize (BYTE pdrv);
+DSTATUS disk_status (BYTE pdrv);
+DRESULT disk_read (BYTE pdrv, BYTE* buff, LBA_t sector, UINT count);
+DRESULT disk_write (BYTE pdrv, const BYTE* buff, LBA_t sector, UINT count);
+DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);