Use the subdevice 'state' variable instead of carrying the state of
the output channels in the private data.
Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.
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/das08.c | 14 +++++---------
drivers/staging/comedi/drivers/das08.h | 1 -
2 files changed, 5 insertions(+), 10 deletions(-)
diff --git a/drivers/staging/comedi/drivers/das08.c
b/drivers/staging/comedi/drivers/das08.c
index 5f66970..1add6fb 100644
--- a/drivers/staging/comedi/drivers/das08.c
+++ b/drivers/staging/comedi/drivers/das08.c
@@ -316,17 +316,13 @@ static int das08jr_di_rbits(struct comedi_device *dev,
static int das08jr_do_wbits(struct comedi_device *dev,
struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data)
+ struct comedi_insn *insn,
+ unsigned int *data)
{
- struct das08_private_struct *devpriv = dev->private;
-
- /* null bits we are going to set */
- devpriv->do_bits &= ~data[0];
- /* set new bit values */
- devpriv->do_bits |= data[0] & data[1];
- outb(devpriv->do_bits, dev->iobase + DAS08JR_DIO);
+ if (comedi_dio_update_state(s, data))
+ outb(s->state, dev->iobase + DAS08JR_DIO);
- data[1] = devpriv->do_bits;
+ data[1] = s->state;
return insn->n;
}
diff --git a/drivers/staging/comedi/drivers/das08.h
b/drivers/staging/comedi/drivers/das08.h
index cce1b58..46a314c 100644
--- a/drivers/staging/comedi/drivers/das08.h
+++ b/drivers/staging/comedi/drivers/das08.h
@@ -41,7 +41,6 @@ struct das08_board_struct {
struct das08_private_struct {
unsigned int do_mux_bits; /* bits for do/mux register on boards
without separate do register */
- unsigned int do_bits; /* bits for do register on boards with
register dedicated to digital out only */
const unsigned int *pg_gainlist;
unsigned int ao_readback[2]; /* assume 2 AO channels */
};
--
1.8.3.2
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