PCI1723_VREF       74 drivers/staging/comedi/drivers/adv_pci1723.c #define PCI1723_VREF_NEG10V		PCI1723_VREF(0)
PCI1723_VREF       75 drivers/staging/comedi/drivers/adv_pci1723.c #define PCI1723_VREF_0V			PCI1723_VREF(1)
PCI1723_VREF       76 drivers/staging/comedi/drivers/adv_pci1723.c #define PCI1723_VREF_POS10V		PCI1723_VREF(3)