V4L2_CTRL_FLAG_HAS_WHICH_MIN_MAX
.flags = V4L2_CTRL_FLAG_HAS_WHICH_MIN_MAX,
v4l2_ctrl->flags |= V4L2_CTRL_FLAG_HAS_WHICH_MIN_MAX;
if (!(ctrl->flags & V4L2_CTRL_FLAG_HAS_WHICH_MIN_MAX) &&
flags |= V4L2_CTRL_FLAG_HAS_WHICH_MIN_MAX;
if (flags & V4L2_CTRL_FLAG_HAS_WHICH_MIN_MAX) {