diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/dt282x.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/dt282x.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c index da3ee859bdbc..e89126a15e53 100644 --- a/drivers/staging/comedi/drivers/dt282x.c +++ b/drivers/staging/comedi/drivers/dt282x.c @@ -967,14 +967,12 @@ static int dt282x_ao_cancel(struct comedi_device *dev, static int dt282x_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) + struct comedi_insn *insn, + unsigned int *data) { - if (data[0]) { - s->state &= ~data[0]; - s->state |= (data[0] & data[1]); - + if (comedi_dio_update_state(s, data)) outw(s->state, dev->iobase + DT2821_DIODAT); - } + data[1] = inw(dev->iobase + DT2821_DIODAT); return insn->n; |