From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
When sending the SEND_INITIAL event for write-only controls the
V4L2_EVENT_CTRL_CH_VALUE flag should not be set. It's meaningless.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
drivers/media/video/v4l2-ctrls.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c
index 63a44fd..1b0422e 100644
--- a/drivers/media/video/v4l2-ctrls.c
+++ b/drivers/media/video/v4l2-ctrls.c
@@ -2032,9 +2032,11 @@ void v4l2_ctrl_add_event(struct v4l2_ctrl *ctrl,
if (ctrl->type != V4L2_CTRL_TYPE_CTRL_CLASS &&
(sev->flags & V4L2_EVENT_SUB_FL_SEND_INITIAL)) {
struct v4l2_event ev;
+ u32 changes = V4L2_EVENT_CTRL_CH_FLAGS;
- fill_event(&ev, ctrl, V4L2_EVENT_CTRL_CH_VALUE |
- V4L2_EVENT_CTRL_CH_FLAGS);
+ if (!(ctrl->flags & V4L2_CTRL_FLAG_WRITE_ONLY))
+ changes |= V4L2_EVENT_CTRL_CH_VALUE;
+ fill_event(&ev, ctrl, changes);
v4l2_event_queue_fh(sev->fh, &ev);
}
v4l2_ctrl_unlock(ctrl);
--
1.7.1
--
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