--
-- case V4L2_EXPOSURE_MANUAL:
-- u32_value = MMAL_PARAM_EXPOSUREMODE_OFF;
-- break;
--
-- case V4L2_EXPOSURE_SHUTTER_PRIORITY:
-- u32_value = MMAL_PARAM_EXPOSUREMODE_SPORTS;
-- break;
--
-- case V4L2_EXPOSURE_APERTURE_PRIORITY:
-- u32_value = MMAL_PARAM_EXPOSUREMODE_NIGHT;
-- break;