V4L2_CTRL_WHICH_CUR_VAL
if (which == V4L2_CTRL_WHICH_CUR_VAL)
case V4L2_CTRL_WHICH_CUR_VAL:
if (which == V4L2_CTRL_WHICH_CUR_VAL)
case V4L2_CTRL_WHICH_CUR_VAL:
case V4L2_CTRL_WHICH_CUR_VAL:
which = V4L2_CTRL_WHICH_CUR_VAL;
ret = uvc_ctrl_check_access(chain, ctrls, V4L2_CTRL_WHICH_CUR_VAL,
case V4L2_CTRL_WHICH_CUR_VAL: