SNDRV_DMA_TYPE_DEV_SG   51 include/sound/memalloc.h #define SNDRV_DMA_TYPE_DEV_SG		3	/* generic device SG-buffer */
SNDRV_DMA_TYPE_DEV_SG   53 include/sound/memalloc.h #define SNDRV_DMA_TYPE_DEV_SG	SNDRV_DMA_TYPE_DEV /* no SG-buf support */