CTL_PAN          1223 include/uapi/linux/soundcard.h #define SEQ_PANNING(dev, voice, pos) SEQ_CONTROL(dev, voice, CTL_PAN, (pos+128) / 2)
CTL_PAN           145 sound/core/seq/oss/seq_oss_event.c 					 q->e.chn, CTL_PAN, val, ev);