V4L2_CTRL_FLAG_UPDATE
*flags |= V4L2_CTRL_FLAG_UPDATE;
sensor->vblank->flags |= V4L2_CTRL_FLAG_UPDATE;
sensor->hblank->flags |= V4L2_CTRL_FLAG_UPDATE;
V4L2_CTRL_FLAG_UPDATE;
sd->illum_top->flags |= V4L2_CTRL_FLAG_UPDATE;
sd->illum_bottom->flags |= V4L2_CTRL_FLAG_UPDATE;
pdev->restore_user->flags |= V4L2_CTRL_FLAG_UPDATE;
pdev->restore_factory->flags |= V4L2_CTRL_FLAG_UPDATE;
master->flags |= V4L2_CTRL_FLAG_UPDATE;
*flags |= V4L2_CTRL_FLAG_UPDATE;