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media: v4l2-dev.h: add kernel-doc to two macros 

There are two macros at v4l2-dev.h that aren't documented.

Document them, for completeness.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab 2017-09-28 09:34:54 -04:00
parent 66f1e6078e
commit 69b925c5fc
1 changed files with 15 additions and 3 deletions
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18
include/media/v4l2-dev.h
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@ -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)
/**