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dma_buf_unmap_attachment(9) - phpMan

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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
Kernel Hackers Manual 4.8.                 January 2017                   DMA_BUF_UNMAP_ATTACH(9)


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