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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2009-12-09 08:40:08 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-03-22 04:53:20 -0300 |
| commit | 61f5db549dde43fb91a8b337f3a4096e4076c2d9 (patch) | |
| tree | 0c28bb9dd1aab1b3fc8ce61036677a7790316421 /include/media | |
| parent | 2c0ab67be1b4197a4effac89bb0604832e38be8d (diff) | |
| download | lwn-61f5db549dde43fb91a8b337f3a4096e4076c2d9.tar.gz lwn-61f5db549dde43fb91a8b337f3a4096e4076c2d9.zip | |
[media] v4l: Make v4l2_subdev inherit from media_entity
V4L2 subdevices are media entities. As such they need to inherit from
(include) the media_entity structure.
When registering/unregistering the subdevice, the media entity is
automatically registered/unregistered. The entity is acquired on device
open and released on device close.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/v4l2-subdev.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 0f9937be53d2..6f51ce4d7ee7 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -21,6 +21,7 @@ #ifndef _V4L2_SUBDEV_H #define _V4L2_SUBDEV_H +#include <media/media-entity.h> #include <media/v4l2-common.h> #include <media/v4l2-dev.h> #include <media/v4l2-mediabus.h> @@ -450,6 +451,9 @@ struct v4l2_subdev_internal_ops { stand-alone or embedded in a larger struct. */ struct v4l2_subdev { +#if defined(CONFIG_MEDIA_CONTROLLER) + struct media_entity entity; +#endif struct list_head list; struct module *owner; u32 flags; @@ -472,6 +476,8 @@ struct v4l2_subdev { unsigned int nevents; }; +#define media_entity_to_v4l2_subdev(ent) \ + container_of(ent, struct v4l2_subdev, entity) #define vdev_to_v4l2_subdev(vdev) \ container_of(vdev, struct v4l2_subdev, devnode) |