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Commit 93a9d900 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

media: v4l2-device.h: add v4l2_device_supports_requests() helper 



Add a simple helper function that tests if the driver supports
the request API.

Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent 0ca0e844

include/media/v4l2-device.h

+11 −0
Original line number Diff line number Diff line
@@ -211,6 +211,17 @@ static inline void v4l2_subdev_notify(struct v4l2_subdev *sd, 
		sd->v4l2_dev->notify(sd, notification, arg);

}



/**

 * v4l2_device_supports_requests - Test if requests are supported.

 *

 * @v4l2_dev: pointer to struct v4l2_device

 */

static inline bool v4l2_device_supports_requests(struct v4l2_device *v4l2_dev)

{

	return v4l2_dev->mdev && v4l2_dev->mdev->ops &&

	       v4l2_dev->mdev->ops->req_queue;

}



/* Helper macros to iterate over all subdevs. */



/**