DMA_512           342 drivers/staging/rts5208/rtsx_card.h #define DMA_512				(2 << 4)
DMA_512           552 include/linux/rtsx_pci.h #define   DMA_512			(2 << 4)
DMA_512           585 include/linux/rtsx_usb.h #define DMA_512				(2 << 2)