table of contents
| DMA_BUF_KUNMAP(9) | Device drivers infrastructure | DMA_BUF_KUNMAP(9) |
NAME¶
dma_buf_kunmap - Unmap a page obtained by dma_buf_kmap.
SYNOPSIS¶
void dma_buf_kunmap(struct dma_buf * dmabuf, unsigned long page_num, void * vaddr);
ARGUMENTS¶
dmabuf
[in] buffer to unmap page from.
page_num
[in] page in PAGE_SIZE units to unmap.
vaddr
[in] kernel space pointer obtained from
dma_buf_kmap.
DESCRIPTION¶
This call must always succeed.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |