PCMMIO_AO_CMD_CHAN_SEL  631 drivers/staging/comedi/drivers/pcmmio.c 		cmd |= PCMMIO_AO_CMD_CHAN_SEL(chan - 4);
PCMMIO_AO_CMD_CHAN_SEL  634 drivers/staging/comedi/drivers/pcmmio.c 		cmd |= PCMMIO_AO_CMD_CHAN_SEL(chan);