V4L2_CTRL_FLAG_DISABLED
qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
if (qctrl->flags & V4L2_CTRL_FLAG_DISABLED)
v4l2_ctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
if (ctrl->flags & V4L2_CTRL_FLAG_DISABLED) {
if (ctrl->flags & (V4L2_CTRL_FLAG_DISABLED | V4L2_CTRL_FLAG_WRITE_ONLY))
if (!(ctrl->flags & V4L2_CTRL_FLAG_DISABLED))
qc->flags = V4L2_CTRL_FLAG_DISABLED;
{ .flags = V4L2_CTRL_FLAG_DISABLED };
{ .flags = V4L2_CTRL_FLAG_DISABLED };