The comedi core expects the (*insn_read) operations to read insn->n
values and return the number of values actually read.
Make this function work like the core expects.
Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/comedi/drivers/ni_labpc.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 6461a46..e3f7e45 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -1557,10 +1557,13 @@ static int labpc_calib_insn_read(struct comedi_device *dev,
unsigned int *data)
{
struct labpc_private *devpriv = dev->private;
+ unsigned int chan = CR_CHAN(insn->chanspec);
+ int i;
- data[0] = devpriv->caldac[CR_CHAN(insn->chanspec)];
+ for (i = 0; i < insn->n; i++)
+ data[i] = devpriv->caldac[chan];
- return 1;
+ return insn->n;
}
static int labpc_eeprom_insn_write(struct comedi_device *dev,
--
1.8.1.4
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