From efaddd34c85f25651f7d522433ead7b0c1823487 Mon Sep 17 00:00:00 2001
From: Oleg Kalachev <okalachev@gmail.com>
Date: Fri, 2 Apr 2021 10:35:49 +0300
Subject: [PATCH] image: enable USB in Compute Module 4

---
 builder/assets/hardware_setup.sh | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/builder/assets/hardware_setup.sh b/builder/assets/hardware_setup.sh
index 868de1be..d07af2f1 100755
--- a/builder/assets/hardware_setup.sh
+++ b/builder/assets/hardware_setup.sh
@@ -79,4 +79,10 @@ if ! grep -q "^bcm2835-v4l2" /etc/modules;
 then printf "bcm2835-v4l2\n" >> /etc/modules
 fi
 
-echo_stamp "#8 End of configure hardware interfaces"
+echo_stamp "#8 Check if Compute Module 4"
+if grep -q "Compute Module 4" "/proc/device-tree/model"; then
+  echo_stamp "Enable USB on Compute Module 4"
+  echo "dtoverlay=dwc2,dr_mode=host" >> /boot/config.txt
+fi
+
+echo_stamp "#9 End of configure hardware interfaces"