1V4L2_TUNER_MODE_MONO 2V4L2_TUNER_MODE_STEREO 3V4L2_TUNER_MODE_LANG2 4V4L2_TUNER_MODE_SAP 5V4L2_TUNER_MODE_LANG1 6V4L2_TUNER_MODE_LANG1_LANG2 7