struct analog_parameters — Parameters to tune into an analog/radio channel
struct analog_parameters {
  unsigned int frequency;
  unsigned int mode;
  unsigned int audmode;
  u64 std;
};  Frequency used by analog TV tuner (either in 62.5 kHz step, for TV, or 62.5 Hz for radio)
Tuner mode, as defined on enum v4l2_tuner_type
Audio mode as defined for the rxsubchans field at videodev2.h, e. g. V4L2_TUNER_MODE_*
TV standard bitmap as defined at videodev2.h, e. g. V4L2_STD_*