diff --git a/include/media/media-request.h b/include/media/media-request.h index 9664ebac5dc42afd2fd433d1d8c764bb6ab86c33..1c3e5d804d07695d00eec2489883da0263f7d8e8 100644 --- a/include/media/media-request.h +++ b/include/media/media-request.h @@ -143,6 +143,24 @@ static inline void media_request_get(struct media_request *req) */ void media_request_put(struct media_request *req); +/** + * media_request_get_by_fd - Get a media request by fd + * + * @mdev: Media device this request belongs to + * @request_fd: The file descriptor of the request + * + * Get the request represented by @request_fd that is owned + * by the media device. + * + * Return a -EPERM error pointer if requests are not supported + * by this driver. Return -ENOENT if the request was not found. + * Return the pointer to the request if found: the caller will + * have to call @media_request_put when it finished using the + * request. + */ +struct media_request * +media_request_get_by_fd(struct media_device *mdev, int request_fd); + /** * media_request_alloc - Allocate the media request * @@ -164,6 +182,12 @@ static inline void media_request_put(struct media_request *req) { } +static inline struct media_request * +media_request_get_by_fd(struct media_device *mdev, int request_fd) +{ + return ERR_PTR(-EPERM); +} + #endif /**