For aesthetics, use the helper function to handle the 2's complement
to offset binary munging of the analog input data.
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/ii_pci20kc.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/staging/comedi/drivers/ii_pci20kc.c
b/drivers/staging/comedi/drivers/ii_pci20kc.c
index 6e2ce93..a6fc829 100644
--- a/drivers/staging/comedi/drivers/ii_pci20kc.c
+++ b/drivers/staging/comedi/drivers/ii_pci20kc.c
@@ -244,11 +244,8 @@ static int ii20k_ai_insn_read(struct comedi_device *dev,
val = readb(iobase + II20K_AI_LSB_REG);
val |= (readb(iobase + II20K_AI_MSB_REG) << 8);
- /* munge two's complement data */
- val += ((s->maxdata + 1) >> 1);
- val &= s->maxdata;
-
- data[i] = val;
+ /* munge the 2's complement data to offset binary */
+ data[i] = comedi_offset_munge(s, val);
}
return insn->n;
--
2.5.1
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