From: Keith Packard <keithp@keithp.com>
Date: Fri, 15 Dec 2017 07:10:43 +0000 (-0800)
Subject: ao-bringup/test-chaoskey: Make finding most recent device more reliable
X-Git-Tag: 1.8.4~1^2~22
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=b866b3ca249dce61f8ff16c8d28514d1b80386d7

ao-bringup/test-chaoskey: Make finding most recent device more reliable

Use dmesg -t to strip off the timestamp, which avoids having a
variable number of fields for awk to look at.

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/ao-bringup/test-chaoskey b/ao-bringup/test-chaoskey
index f64b1f84..26684875 100755
--- a/ao-bringup/test-chaoskey
+++ b/ao-bringup/test-chaoskey
@@ -12,8 +12,8 @@ case "$#" in
 	serial="--serial $1"
 	;;
     0)
-	snum=`sudo dmesg | awk '/usb.*Product:/ { ck = index($0, "ChaosKey"); }
-		     /usb.*SerialNumber:/ { if (ck) print $5; }' | tail -1`
+	snum=`sudo dmesg -t | awk '/usb.*Product:/ { ck = index($0, "ChaosKey"); }
+		     /usb.*SerialNumber:/ { if (ck) print $4; }' | tail -1`
 
 	case "$snum" in
 	    "")