diff --git a/Scripts/gadget.sh b/Scripts/gadget.sh
index ab978eb..148f635 100755
--- a/Scripts/gadget.sh
+++ b/Scripts/gadget.sh
@@ -1,3 +1,4 @@
+#!/bin/bash
 # Adapted from
 # "Using OTG mode on Raspberry Pi SBCs"
 # https://pip-assets.raspberrypi.com/categories/685-app-notes-guides-whitepapers/documents/RP-009276-WP/Using-OTG-mode-on-Raspberry-Pi-SBCs
@@ -46,3 +47,7 @@ ln -s functions/acm.usb0 configs/c.1/
 ## Ethernet (RNDIS and ECM)
 mkdir functions/ecm.usb0
 ln -s functions/ecm.usb0 configs/c.1/
+
+## USB Device Controller update
+UDC=`ls /sys/class/udc`
+echo $UDC > UDC
\ No newline at end of file