diff options
| -rw-r--r-- | drivers/staging/comedi/drivers/cb_pcidas64.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c index 942ba5cd8270..fdd81c3beb51 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas64.c +++ b/drivers/staging/comedi/drivers/cb_pcidas64.c @@ -2462,20 +2462,21 @@ static int setup_channel_queue(struct comedi_device *dev, writew(0, devpriv->main_iobase + ADC_QUEUE_CLEAR_REG); /* load external queue */ for (i = 0; i < cmd->chanlist_len; i++) { + unsigned int chanspec = cmd->chanlist[i]; + int use_differential; + bits = 0; /* set channel */ - bits |= adc_chan_bits(CR_CHAN(cmd-> - chanlist[i])); + bits |= adc_chan_bits(CR_CHAN(chanspec)); /* set gain */ bits |= ai_range_bits_6xxx(dev, - CR_RANGE(cmd-> - chanlist - [i])); + CR_RANGE(chanspec)); /* set single-ended / differential */ - bits |= se_diff_bit_6xxx(dev, - CR_AREF(cmd-> - chanlist[i]) == - AREF_DIFF); + use_differential = 0; + if (CR_AREF(chanspec) == AREF_DIFF) + use_differential = 1; + bits |= se_diff_bit_6xxx(dev, use_differential); + if (CR_AREF(cmd->chanlist[i]) == AREF_COMMON) bits |= ADC_COMMON_BIT; /* mark end of queue */ |