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staging: comedi: adl_pci9111: cleanup pci9111_ao_insn_write()

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Remove the unnecessary comment.

Only the last data value written needs to be cached for
readback.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2012-09-10 18:54:08 -07:00 • committed by Greg Kroah-Hartman
parent 6b7044dcfc
commit 2084fd19f8
1 changed files with 9 additions and 9 deletions
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18
drivers/staging/comedi/drivers/adl_pci9111.c
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@ -1035,22 +1035,22 @@ conversion_done:
return i; return i;
} }
/* Analog instant output */ static int pci9111_ao_insn_write(struct comedi_device *dev,
struct comedi_subdevice *s,
static int struct comedi_insn *insn,
pci9111_ao_insn_write(struct comedi_device *dev, unsigned int *data)
struct comedi_subdevice *s, struct comedi_insn *insn,
unsigned int *data)
{ {
struct pci9111_private_data *dev_private = dev->private; struct pci9111_private_data *dev_private = dev->private;
unsigned int val = 0;
int i; int i;
for (i = 0; i < insn->n; i++) { for (i = 0; i < insn->n; i++) {
outw(data[i], dev->iobase + PCI9111_AO_REG); val = data[i];
dev_private->ao_readback = data[i]; outw(val, dev->iobase + PCI9111_AO_REG);
} }
dev_private->ao_readback = val;
return i; return insn->n;
} }
static int pci9111_ao_insn_read(struct comedi_device *dev, static int pci9111_ao_insn_read(struct comedi_device *dev,