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Commit 47ef2541 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
Browse files

staging: comedi: ni_mio_common: fix ni_ao_insn_read() 



The comedi core expects (*insn_read) functions to return insn->n
data smaples. Fix this function to work like the core expects.

Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: default avatarIan Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 93fac790

drivers/staging/comedi/drivers/ni_mio_common.c

+7 −3
Original line number Diff line number Diff line
@@ -2939,14 +2939,18 @@ static int ni_ao_config_chanlist(struct comedi_device *dev, 
}



static int ni_ao_insn_read(struct comedi_device *dev,

			   struct comedi_subdevice *s, struct comedi_insn *insn,

			   struct comedi_subdevice *s,

			   struct comedi_insn *insn,

			   unsigned int *data)

{

	struct ni_private *devpriv = dev->private;

	unsigned int chan = CR_CHAN(insn->chanspec);

	int i;



	data[0] = devpriv->ao[CR_CHAN(insn->chanspec)];

	for (i = 0; i < insn->n; i++)

		data[i] = devpriv->ao[chan];



	return 1;

	return insn->n;

}



static int ni_ao_insn_write(struct comedi_device *dev,