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| DMA_BUF_UNMAP_ATTACH(9) | Device drivers infrastructure | DMA_BUF_UNMAP_ATTACH(9) |
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
COPYRIGHT¶
| January 2017 | Kernel Hackers Manual 4.8. |