diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/dyna_pci10xx.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/dyna_pci10xx.c | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/drivers/staging/comedi/drivers/dyna_pci10xx.c b/drivers/staging/comedi/drivers/dyna_pci10xx.c index fd525f499f2a..f2a9f1c2f3b6 100644 --- a/drivers/staging/comedi/drivers/dyna_pci10xx.c +++ b/drivers/staging/comedi/drivers/dyna_pci10xx.c @@ -147,33 +147,23 @@ static int dyna_pci10xx_di_insn_bits(struct comedi_device *dev, return insn->n; } -/* digital output bit interface */ static int dyna_pci10xx_do_insn_bits(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) { struct dyna_pci10xx_private *devpriv = dev->private; - /* The insn data is a mask in data[0] and the new data - * in data[1], each channel cooresponding to a bit. - * s->state contains the previous write data - */ mutex_lock(&devpriv->mutex); - if (data[0]) { - s->state &= ~data[0]; - s->state |= (data[0] & data[1]); + if (comedi_dio_update_state(s, data)) { smp_mb(); outw_p(s->state, devpriv->BADR3); udelay(10); } - /* - * On return, data[1] contains the value of the digital - * input and output lines. We just return the software copy of the - * output values if it was a purely digital output subdevice. - */ data[1] = s->state; mutex_unlock(&devpriv->mutex); + return insn->n; } |