dma_buf_unmap_attachment
Prev Device Drivers DMA Management Next

Name

dma_buf_unmap_attachment — unmaps and decreases usecount of the buffer;might deallocate the scatterlist associated. Is a wrapper for unmap_dma_buf of dma_buf_ops.

Synopsis

void dma_buf_unmap_attachment (struct dma_buf_attachment * attach,
 struct sg_table * sg_table,
 enum dma_data_direction direction);
 

Arguments

attach

[in] attachment to unmap buffer from

sg_table

[in] scatterlist info of the buffer to unmap

direction

[in] direction of DMA transfer

Prev Up Next
dma_buf_map_attachment Home dma_buf_begin_cpu_access