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Commit 4f4d14b7 authored by Sylwester Nawrocki's avatar Sylwester Nawrocki Committed by Mauro Carvalho Chehab
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[media] V4L: Add v4l2_event_subdev_unsubscribe() helper function 



Add a v4l2 core helper function that can be used as the subdev
.unsubscribe_event handler. This allows to eliminate some
boilerplate from drivers that are only handling the control events.

Signed-off-by: default avatarSylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 2ccbe779

drivers/media/v4l2-core/v4l2-event.c

+7 −0
Original line number Original line Diff line number Diff line
@@ -311,3 +311,10 @@ int v4l2_event_unsubscribe(struct v4l2_fh *fh, 
	return 0;

	return 0;

}

}

EXPORT_SYMBOL_GPL(v4l2_event_unsubscribe);

EXPORT_SYMBOL_GPL(v4l2_event_unsubscribe);



int v4l2_event_subdev_unsubscribe(struct v4l2_subdev *sd, struct v4l2_fh *fh,

				  struct v4l2_event_subscription *sub)

{

	return v4l2_event_unsubscribe(fh, sub);

}

EXPORT_SYMBOL_GPL(v4l2_event_subdev_unsubscribe);

include/media/v4l2-event.h

+3 −1
Original line number Original line Diff line number Diff line
@@ -64,6 +64,7 @@ 
 */

 */





struct v4l2_fh;

struct v4l2_fh;

struct v4l2_subdev;

struct v4l2_subscribed_event;

struct v4l2_subscribed_event;

struct video_device;

struct video_device;
@@ -129,5 +130,6 @@ int v4l2_event_subscribe(struct v4l2_fh *fh, 
int v4l2_event_unsubscribe(struct v4l2_fh *fh,

int v4l2_event_unsubscribe(struct v4l2_fh *fh,

			   const struct v4l2_event_subscription *sub);

			   const struct v4l2_event_subscription *sub);

void v4l2_event_unsubscribe_all(struct v4l2_fh *fh);

void v4l2_event_unsubscribe_all(struct v4l2_fh *fh);



int v4l2_event_subdev_unsubscribe(struct v4l2_subdev *sd, struct v4l2_fh *fh,

				  struct v4l2_event_subscription *sub);

#endif /* V4L2_EVENT_H */
 
#endif /* V4L2_EVENT_H */