Any control with V4L2_CTRL_FLAG_EXECUTE_ON_WRITE set should return changed == true in cluster_changed. This forces the value to be passed to the driver even if it has not changed. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx> --- v3: Hans Verkuil <hverkuil@xxxxxxxxx> Also set ctrl_changed to true when V4L2_CTRL_FLAG_EXECUTE_ON_WRITE is set drivers/media/v4l2-core/v4l2-ctrls.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index bacaed6..e3a3468 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -1611,6 +1611,10 @@ static int cluster_changed(struct v4l2_ctrl *master) if (ctrl == NULL) continue; + + if (ctrl->flags & V4L2_CTRL_FLAG_EXECUTE_ON_WRITE) + changed = ctrl_changed = true; + /* * Set has_changed to false to avoid generating * the event V4L2_EVENT_CTRL_CH_VALUE -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html