From: H Hartley Sweeten Date: Wed, 25 Feb 2015 23:28:41 +0000 (-0700) Subject: staging: comedi: cb_pcimdas: provide analog output range table X-Git-Tag: firefly_0821_release~176^2~1998^2~138^2~712 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=21314bc6f8f42024dd82b7d1b00d6e53043241bc;p=firefly-linux-kernel-4.4.55.git staging: comedi: cb_pcimdas: provide analog output range table 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 Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/cb_pcimdas.c b/drivers/staging/comedi/drivers/cb_pcimdas.c index b0cc4f59789d..94da819f650a 100644 --- a/drivers/staging/comedi/drivers/cb_pcimdas.c +++ b/drivers/staging/comedi/drivers/cb_pcimdas.c @@ -136,6 +136,19 @@ 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, @@ -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);