From: David Schleef <ds@schleef.org>
Date: Mon, 30 Sep 2002 23:48:51 +0000 (+0000)
Subject: Fix 671x ao munging (again).  This time, with feeling.  (Or, correct
X-Git-Tag: r0_7_66~82
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=e4c02ce769bded6f49791593046f0a96fe39aeea;p=comedi.git

Fix 671x ao munging (again).  This time, with feeling.  (Or, correct
unipolar/bipolar behavior)
---

diff --git a/comedi/drivers/ni_mio_common.c b/comedi/drivers/ni_mio_common.c
index 664470d9..a97c63cd 100644
--- a/comedi/drivers/ni_mio_common.c
+++ b/comedi/drivers/ni_mio_common.c
@@ -1828,16 +1828,14 @@ static int ni_ao_insn_write_671x(comedi_device *dev,comedi_subdevice *s,
 	comedi_insn *insn,lsampl_t *data)
 {
 	unsigned int chan = CR_CHAN(insn->chanspec);
-	lsampl_t d;
+	unsigned int invert;
 
-	ni_ao_config_chanlist(dev,s,&insn->chanspec,1);
+	invert = ni_ao_config_chanlist(dev,s,&insn->chanspec,1);
 
-	d = data[insn->n-1];
-	devpriv->ao[chan] = d;
-	d -= 1 << (boardtype.aobits - 1);
-	ao_win_out(d,DACx_Direct_Data_671x(chan));
+	devpriv->ao[chan] = data[0];
+	ao_win_out(data[0] ^ invert, DACx_Direct_Data_671x(chan));
 
-	return insn->n;
+	return 1;
 }
 
 static int ni_ao_inttrig(comedi_device *dev,comedi_subdevice *s,