PCXHR_XLX_RUER
PCXHR_INPB(mgr, PCXHR_XLX_RUER);
PCXHR_INPB(mgr, PCXHR_XLX_RUER); /* close input level codec */
PCXHR_OUTPB(chip->mgr, PCXHR_XLX_RUER, idx++); /* idx < 192 */
PCXHR_OUTPB(chip->mgr, PCXHR_XLX_RUER, idx);