unsigned int ao_readback[4];
};
-#define devpriv ((struct aio12_8_private *) dev->private)
-
static int aio_aio12_8_ai_read(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 aio12_8_private *devpriv = dev->private;
int i;
int val = devpriv->ao_readback[CR_CHAN(insn->chanspec)];
struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
+ struct aio12_8_private *devpriv = dev->private;
int i;
int chan = CR_CHAN(insn->chanspec);
unsigned long port = dev->iobase + AIO12_8_DAC_0 + (2 * chan);
struct comedi_devconfig *it)
{
const struct aio12_8_boardtype *board = comedi_board(dev);
+ struct aio12_8_private *devpriv;
int iobase;
struct comedi_subdevice *s;
int ret;
dev->iobase = iobase;
- if (alloc_private(dev, sizeof(struct aio12_8_private)) < 0)
- return -ENOMEM;
+ ret = alloc_private(dev, sizeof(*devpriv));
+ if (ret)
+ return ret;
+ devpriv = dev->private;
ret = comedi_alloc_subdevices(dev, 3);
if (ret)