NI_AO_SUBDEV     6050 drivers/staging/comedi/drivers/ni_mio_common.c 	s = &dev->subdevices[NI_AO_SUBDEV];
NI_AO_SUBDEV     1374 drivers/staging/comedi/drivers/ni_pcimio.c 	dev->subdevices[NI_AO_SUBDEV].buf_change = &pcimio_ao_change;