table of contents
| DMA_BUF_EXPORT(9) | Device drivers infrastructure | DMA_BUF_EXPORT(9) |
NAME¶
dma_buf_export - Creates a new dma_buf, and associates an anon file with this buffer, so it can be exported. Also connect the allocator specific data and ops to the buffer. Additionally, provide a name string for exporter; useful in debugging.
SYNOPSIS¶
struct dma_buf * dma_buf_export(const struct dma_buf_export_info * exp_info);
ARGUMENTS¶
exp_info
[in] holds all the export related information provided by
the exporter. see struct dma_buf_export_info for further details.
DESCRIPTION¶
Returns, on success, a newly created dma_buf object, which wraps the supplied private data and operations for dma_buf_ops. On either missing ops, or error in allocating struct dma_buf, will return negative error.
For most cases the easiest way to create exp_info is through the DEFINE_DMA_BUF_EXPORT_INFO macro.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |