diff options
Diffstat (limited to 'include/libvfio-user.h')
| -rw-r--r-- | include/libvfio-user.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/libvfio-user.h b/include/libvfio-user.h index 1cc62d9..62d4e77 100644 --- a/include/libvfio-user.h +++ b/include/libvfio-user.h @@ -546,7 +546,7 @@ vfu_addr_to_sg(vfu_ctx_t *vfu_ctx, dma_addr_t dma_addr, uint32_t len, * mapping * @cnt: number of scatter/gather entries to map * - * @returns 0 on success, -1 on failure + * @returns 0 on success, -1 on failure. Sets errno. */ int vfu_map_sg(vfu_ctx_t *vfu_ctx, const dma_sg_t *sg, @@ -573,6 +573,8 @@ vfu_unmap_sg(vfu_ctx_t *vfu_ctx, const dma_sg_t *sg, * @vfu_ctx: the libvfio-user context * @sg: a DMA segment obtained from dma_addr_to_sg * @data: data buffer to read into + * + * @returns 0 on success, -1 on failure. Sets errno. */ int vfu_dma_read(vfu_ctx_t *vfu_ctx, dma_sg_t *sg, void *data); @@ -583,6 +585,8 @@ vfu_dma_read(vfu_ctx_t *vfu_ctx, dma_sg_t *sg, void *data); * @vfu_ctx: the libvfio-user context * @sg: a DMA segment obtained from dma_addr_to_sg * @data: data buffer to write + * + * @returns 0 on success, -1 on failure. Sets errno. */ int vfu_dma_write(vfu_ctx_t *vfu_ctx, dma_sg_t *sg, void *data); |