v4l2_get_ctrl_max 1451 modules/videoio/src/cap_libv4l.cpp       int v4l2_max = v4l2_get_ctrl_max(capture, capture->control.id);
v4l2_get_ctrl_max 1659 modules/videoio/src/cap_libv4l.cpp   v4l2_max = v4l2_get_ctrl_max(capture, capture->control.id);