taglinefilesource code
CTL_EXPRESSION1143drivers/sound/gus_wave.ccase CTL_EXPRESSION:
CTL_EXPRESSION572drivers/sound/sequencer.cp1 = CTL_EXPRESSION;
CTL_EXPRESSION908include/linux/soundcard.h#define SEQ_EXPRESSION(dev, voice, value) SEQ_CONTROL(dev, voice, CTL_EXPRESSION, value*128)