From 22fa4279eebc3fa4b3c3dc2b190158dbbafcda9f Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Tue, 22 Jan 2013 19:00:23 -0300 Subject: [media] V4L: Add v4l2_ctrl_subdev_subscribe_event() helper function Add a v4l2 core helper function that can be used as the subdev .subscribe_event handler. This allows to eliminate some boilerplate from drivers that are only handling the control events. Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-ctrls.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/media/v4l2-ctrls.h') diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index 91125b6f05a5..1e849461fc9d 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -654,4 +654,9 @@ int v4l2_subdev_s_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *cs int v4l2_subdev_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl); int v4l2_subdev_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl); +/* Can be used as a subscribe_event function that just subscribes control + events. */ +int v4l2_ctrl_subdev_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, + struct v4l2_event_subscription *sub); + #endif -- cgit v1.2.3