From: David Schleef <ds@schleef.org>
Date: Wed, 1 Aug 2001 12:07:05 +0000 (+0000)
Subject: Enable dithering.  Fix wrong expectation of return value from do_insn()
X-Git-Tag: r0_7_17~44
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=14695f8c96fbb7d449f9ef5b6a92a219a8407169;p=comedilib.git

Enable dithering.  Fix wrong expectation of return value from do_insn()
---

diff --git a/comedi_calibrate/comedi_calibrate.c b/comedi_calibrate/comedi_calibrate.c
index 23e663e..65361cf 100644
--- a/comedi_calibrate/comedi_calibrate.c
+++ b/comedi_calibrate/comedi_calibrate.c
@@ -928,12 +928,12 @@ int comedi_data_read_n(comedi_t *it,unsigned int subdev,unsigned int chan,
 	insn.data = data;
 	insn.subdev = subdev;
 	insn.chanspec = CR_PACK(chan,range,aref);
+	/* enable dithering */
+	insn.chanspec |= (1<<26);
 	
 	ret = comedi_do_insn(it,&insn);
 
-	/* comedi_do_insn returns the number of sucessful insns.
-	 * Hopefully 1. */
-	if(ret==1)return n;
+	if(ret>0)return n;
 
 	printf("insn barfed: subdev=%d, chan=%d, range=%d, aref=%d, "
 		"n=%d, ret=%d, %s\n",subdev,chan,range,aref,n,ret,