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staging: comedi: pcmuio: sample types are unsigned

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Sample values in comedi are generally represented as unsigned values.
Change `pcmuio_handle_intr_subdev()` in the "pcmuio" module to use
unsigned sample values for consistency.

Also, make the order in which `pcmuio_handle_intr_subdev()` writes the
two sample values (each actually containing up to 16 1-bit sample
values) independent of the host byte ordering.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ian Abbott
2013-10-16 14:40:33 +01:00
committed by Greg Kroah-Hartman
parent f23b65a588
commit 5c174c41d8
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/comedi/drivers/pcmuio.c
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@@ -315,8 +315,8 @@ static void pcmuio_handle_intr_subdev(struct comedi_device *dev,
}
/* Write the scan to the buffer. */
if (comedi_buf_put(s->async, ((short *)&val)[0]) &&
comedi_buf_put(s->async, ((short *)&val)[1])) {
if (comedi_buf_put(s->async, val) &&
comedi_buf_put(s->async, val >> 16)) {
s->async->events |= (COMEDI_CB_BLOCK | COMEDI_CB_EOS);
} else {
/* Overflow! Stop acquisition!! */