pvr2_hdw_get_tuner_status
int pvr2_hdw_get_tuner_status(struct pvr2_hdw *,struct v4l2_tuner *);
return pvr2_hdw_get_tuner_status(hdw, vt);
ret = pvr2_hdw_get_tuner_status(hdw, &vt);
ret = pvr2_hdw_get_tuner_status(hdw, &vt);