From 9551231ef578bfab38caf0dc1d3d2e6f2e03581d Mon Sep 17 00:00:00 2001
From: jim <jim@ddd99763-3ecb-0310-9145-efcb8ce7c51f>
Date: Fri, 10 Jul 2009 20:15:37 +0000
Subject: [PATCH] better errors

git-svn-id: https://bucket.mit.edu/svn/nilm/zoom@7607 ddd99763-3ecb-0310-9145-efcb8ce7c51f
---
 pc/calibrate.c | 4 ++--
 pc/read.c      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/pc/calibrate.c b/pc/calibrate.c
index c5cbe55..11722ab 100644
--- a/pc/calibrate.c
+++ b/pc/calibrate.c
@@ -68,9 +68,9 @@ int main(int argc, char *argv[])
 	}
 
 	if ((zoom = serial_open(zoomdev, 115200)) == -1)
-		errx(1, "zoom open failed");
+		err(1, "failed to open zoom device %s", zoomdev);
 	if ((gpib = serial_open(gpibdev, 9600)) == -1)
-		errx(1, "gpib open failed");
+		err(1, "failed to open gpib device %s", gpibdev);
 
 	signal(SIGINT, handle_sig);
 	calibrate(zoom, gpib);
diff --git a/pc/read.c b/pc/read.c
index 2c25b8e..78f3cf9 100644
--- a/pc/read.c
+++ b/pc/read.c
@@ -93,7 +93,7 @@ int main(int argc, char *argv[])
 	}
 
 	if ((fd = serial_open(device, rate)) == -1)
-		errx(1, "serial_open failed");
+		err(1, "serial_open failed for %s", device);
 
 	len = 0;
 	while (1) {