The analog output range is not programmable. The DAC ranges are jumper-settable on the board. For aesthetics, provide a range table for the user with all possible ranges.
Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com> Cc: Ian Abbott <abbo...@mev.co.uk> Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/staging/comedi/drivers/cb_pcimdas.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/staging/comedi/drivers/cb_pcimdas.c b/drivers/staging/comedi/drivers/cb_pcimdas.c index b0cc4f5..94da819 100644 --- a/drivers/staging/comedi/drivers/cb_pcimdas.c +++ b/drivers/staging/comedi/drivers/cb_pcimdas.c @@ -137,6 +137,19 @@ static const struct comedi_lrange cb_pcimdas_ai_uni_range = { }; /* + * The Analog Output range is not programmable. The DAC ranges are + * jumper-settable on the board. The settings are not software-readable. + */ +static const struct comedi_lrange cb_pcimdas_ao_range = { + 4, { + BIP_RANGE(10), + BIP_RANGE(5), + UNI_RANGE(10), + UNI_RANGE(5) + } +}; + +/* * this structure is for data unique to this hardware driver. If * several hardware drivers keep similar information in this structure, * feel free to suggest moving the variable to the struct comedi_device @@ -306,8 +319,7 @@ static int cb_pcimdas_auto_attach(struct comedi_device *dev, s->subdev_flags = SDF_WRITABLE; s->n_chan = 2; s->maxdata = 0xfff; - /* ranges are hardware settable, but not software readable. */ - s->range_table = &range_unknown; + s->range_table = &cb_pcimdas_ao_range; s->insn_write = cb_pcimdas_ao_insn_write; ret = comedi_alloc_subdev_readback(s); -- 2.3.0 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel