diff options
| author |   H Hartley Sweeten <hsweeten@visionengravers.com> | 2015-08-14 15:23:31 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-09-12 18:24:17 -0700 |
| commit | 6e2ebdf8720306d9aee47de4e050b41884de7e3d (patch) | |
| tree | 0631563c4add8ac4670db03228d5acf6f6c06ed4 | |
| parent | staging: comedi: usbdux: remove impossible 'if (!devpriv)' check (diff) | |
| download | linux-dev-6e2ebdf8720306d9aee47de4e050b41884de7e3d.tar.xz linux-dev-6e2ebdf8720306d9aee47de4e050b41884de7e3d.zip | |
staging: comedi: usbdux: use comedi_offset_munge()
Use the comedi_offset_munge() helper to convert the hardware two's
complement values to the offset binary format expected by comedi.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/comedi/drivers/usbdux.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c index eea41e8ad1ac..39710f2297a6 100644 --- a/drivers/staging/comedi/drivers/usbdux.c +++ b/drivers/staging/comedi/drivers/usbdux.c @@ -266,7 +266,7 @@ static void usbduxsub_ai_handle_urb(struct comedi_device *dev, /* bipolar data is two's-complement */ if (comedi_range_is_bipolar(s, range)) - val ^= ((s->maxdata + 1) >> 1); + val = comedi_offset_munge(s, val); /* transfer data */ if (!comedi_buf_write_samples(s, &val, 1)) @@ -776,7 +776,7 @@ static int usbdux_ai_insn_read(struct comedi_device *dev, /* bipolar data is two's-complement */ if (comedi_range_is_bipolar(s, range)) - val ^= ((s->maxdata + 1) >> 1); + val = comedi_offset_munge(s, val); data[i] = val; } |