diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/uvc/uvc_ctrl.c | 5 | ||||
| -rw-r--r-- | drivers/media/video/v4l2-ctrls.c | 5 | ||||
| -rw-r--r-- | drivers/media/video/v4l2-event.c | 2 |
3 files changed, 9 insertions, 3 deletions
diff --git a/drivers/media/video/uvc/uvc_ctrl.c b/drivers/media/video/uvc/uvc_ctrl.c index 28363b72ff8a..f3bd66c500b6 100644 --- a/drivers/media/video/uvc/uvc_ctrl.c +++ b/drivers/media/video/uvc/uvc_ctrl.c @@ -1250,7 +1250,7 @@ static void uvc_ctrl_send_events(struct uvc_fh *handle, } } -static int uvc_ctrl_add_event(struct v4l2_subscribed_event *sev) +static int uvc_ctrl_add_event(struct v4l2_subscribed_event *sev, unsigned elems) { struct uvc_fh *handle = container_of(sev->fh, struct uvc_fh, vfh); struct uvc_control_mapping *mapping; @@ -1278,6 +1278,9 @@ static int uvc_ctrl_add_event(struct v4l2_subscribed_event *sev) uvc_ctrl_fill_event(handle->chain, &ev, ctrl, mapping, val, changes); + /* Mark the queue as active, allowing this initial + event to be accepted. */ + sev->elems = elems; v4l2_event_queue_fh(sev->fh, &ev); } diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c index a5fbace4c059..9abd9abd4502 100644 --- a/drivers/media/video/v4l2-ctrls.c +++ b/drivers/media/video/v4l2-ctrls.c @@ -2559,7 +2559,7 @@ int v4l2_ctrl_s_ctrl(struct v4l2_ctrl *ctrl, s32 val) } EXPORT_SYMBOL(v4l2_ctrl_s_ctrl); -static int v4l2_ctrl_add_event(struct v4l2_subscribed_event *sev) +static int v4l2_ctrl_add_event(struct v4l2_subscribed_event *sev, unsigned elems) { struct v4l2_ctrl *ctrl = v4l2_ctrl_find(sev->fh->ctrl_handler, sev->id); @@ -2576,6 +2576,9 @@ static int v4l2_ctrl_add_event(struct v4l2_subscribed_event *sev) if (!(ctrl->flags & V4L2_CTRL_FLAG_WRITE_ONLY)) changes |= V4L2_EVENT_CTRL_CH_VALUE; fill_event(&ev, ctrl, changes); + /* Mark the queue as active, allowing this initial + event to be accepted. */ + sev->elems = elems; v4l2_event_queue_fh(sev->fh, &ev); } v4l2_ctrl_unlock(ctrl); diff --git a/drivers/media/video/v4l2-event.c b/drivers/media/video/v4l2-event.c index 60b4e2e9c874..ef2a33c94045 100644 --- a/drivers/media/video/v4l2-event.c +++ b/drivers/media/video/v4l2-event.c @@ -239,7 +239,7 @@ int v4l2_event_subscribe(struct v4l2_fh *fh, } if (sev->ops && sev->ops->add) { - int ret = sev->ops->add(sev); + int ret = sev->ops->add(sev, elems); if (ret) { sev->ops = NULL; v4l2_event_unsubscribe(fh, sub); |