From 4820fae9cdc9a39e3c1d2f1dd0b14c1f7128ea58 Mon Sep 17 00:00:00 2001
From: Angus Gratton <gus@projectgus.com>
Date: Tue, 9 Apr 2013 11:27:28 +1000
Subject: [PATCH] fel-gpio: Error out if the FEL device can't be contacted

---
 fel-gpio | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fel-gpio b/fel-gpio
index dc10c2a..839d39b 100755
--- a/fel-gpio
+++ b/fel-gpio
@@ -3,6 +3,7 @@
 pio_to_sram=0x2000
 sram_to_pio=0x2004
 
+set -e
 if [ -f fel-pio.bin ]; then
 	./fel write 0x2000 fel-pio.bin
 else
@@ -13,6 +14,8 @@ fi
 ./fel read 0x3000 0x228 pio.reg
 ./pio -i pio.reg print > pio.old
 cat pio.old | fgrep -v '<0><0><0><0>'
+
+set +e
 while read cmd; do
 	./pio -i pio.reg -o pio.reg $cmd
 	./fel write 0x3000 pio.reg