| Message ID | 20180804124526.46206-8-hverkuil@xs4all.nl (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Request API | expand |
Em Sat, 4 Aug 2018 14:44:59 +0200 Hans Verkuil <hverkuil@xs4all.nl> escreveu: > From: Hans Verkuil <hans.verkuil@cisco.com> > > Add a simple helper function that tests if the driver supports > the request API. > > Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> > --- > include/media/v4l2-device.h | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h > index b330e4a08a6b..ac7677a183ff 100644 > --- a/include/media/v4l2-device.h > +++ b/include/media/v4l2-device.h > @@ -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. */ > > /** Thanks, Mauro
diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h index b330e4a08a6b..ac7677a183ff 100644 --- a/include/media/v4l2-device.h +++ b/include/media/v4l2-device.h @@ -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. */ /**