dma_buf_map_attachment(9) centos man page | unix.com

DMA_BUF_MAP_ATTACHME(9) 				   Device drivers infrastructure				   DMA_BUF_MAP_ATTACHME(9)

NAME
       dma_buf_map_attachment - Returns the scatterlist table of the attachment; mapped into _device_ address space. Is a wrapper for map_dma_buf
       of the dma_buf_ops.

SYNOPSIS
       struct sg_table * dma_buf_map_attachment(struct dma_buf_attachment * attach, enum dma_data_direction direction);

ARGUMENTS
       attach
	   [in] attachment whose scatterlist is to be returned

       direction
	   [in] direction of DMA transfer

DESCRIPTION
       Returns sg_table containing the scatterlist to be returned; may return NULL or ERR_PTR.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   DMA_BUF_MAP_ATTACHME(9)