diff options
| -rw-r--r-- | include/media/v4l2-dev.h | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index 28a686eb7d09..82b93e91e2eb 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -261,9 +261,21 @@ struct video_device struct mutex *lock; }; -#define media_entity_to_video_device(__e) \ - container_of(__e, struct video_device, entity) -/* dev to video-device */ +/** + * media_entity_to_video_device - Returns a &struct video_device from + * the &struct media_entity embedded on it. + * + * @entity: pointer to &struct media_entity + */ +#define media_entity_to_video_device(entity) \ + container_of(entity, struct video_device, entity) + +/** + * to_video_device - Returns a &struct video_device from the + * &struct device embedded on it. + * + * @cd: pointer to &struct device + */ #define to_video_device(cd) container_of(cd, struct video_device, dev) /** |