return n;
 }
 
-/* writes to an analog output channel */
-static int das1800_ao_winsn(struct comedi_device *dev,
-                           struct comedi_subdevice *s,
-                           struct comedi_insn *insn, unsigned int *data)
+static int das1800_ao_insn_write(struct comedi_device *dev,
+                                struct comedi_subdevice *s,
+                                struct comedi_insn *insn,
+                                unsigned int *data)
 {
        const struct das1800_board *board = dev->board_ptr;
        struct das1800_private *devpriv = dev->private;
                s->munge = das1800_ai_munge;
        }
 
-       /* analog out */
+       /* Analog Output subdevice */
        s = &dev->subdevices[1];
        if (board->ao_ability == 1) {
-               s->type = COMEDI_SUBD_AO;
-               s->subdev_flags = SDF_WRITABLE;
-               s->n_chan = board->ao_n_chan;
-               s->maxdata = (1 << board->resolution) - 1;
-               s->range_table = &range_bipolar10;
-               s->insn_write = das1800_ao_winsn;
+               s->type         = COMEDI_SUBD_AO;
+               s->subdev_flags = SDF_WRITABLE;
+               s->n_chan       = board->ao_n_chan;
+               s->maxdata      = (1 << board->resolution) - 1;
+               s->range_table  = &range_bipolar10;
+               s->insn_write   = das1800_ao_insn_write;
        } else {
-               s->type = COMEDI_SUBD_UNUSED;
+               s->type         = COMEDI_SUBD_UNUSED;
        }
 
        /* Digital Input subdevice */