diff --git a/fingerprint.sh b/fingerprint.sh
old mode 100644
new mode 100755
index c648b08..4465dfc
--- a/fingerprint.sh
+++ b/fingerprint.sh
@@ -1,15 +1,18 @@
 #!/bin/bash
-# s means Setup, 
-# 80 means device to host (bmRequestType), 
-# 06 means get descriptors (bRequest), 
+# Analyze USB Setup Request
+# 80 means device to host (bmRequestType)
+# 06 means get descriptors (bRequest)
 # 03xx means string descriptors (wValue)
-#WLENGTHS=`cat /tmp/0.mon.out | grep "s 80 06 03" | cut -d " " -f 10`
-WLENGTHS=`dmesg | grep "USB DWC2 REQ 80 06 03" | tee /home/pi/HackPi/usbreq.log | cut -d "]" -f 2 | cut -d " " -f 9`
+# 0409 means english (wIndex)
+# wLength is the size of the descriptor and this is what we want
+LOGFILE=/home/pi/HackPi/usbreq.log
+dmesg | grep "USB DWC2 REQ 80 06 03" | tee $LOGFILE
+WLENGTHS=`awk '$9!="0000" { print $10 }' $LOGFILE`
 TOTAL=0
 COUNTER=0
 for i in $WLENGTHS; do
     if [ "$i" = "00ff" ]; then
-        let COUNTER=COUNTER+1 
+        let COUNTER=COUNTER+1
     fi
     let TOTAL=TOTAL+1
     #echo wLength: $i