dwc2 needs to match

gadget.md

@@ -8,6 +8,37 @@ USB-OTG method (Works on Zero, Zero W, and Compute Module)
 
 Based upon Adafruit guide: https://learn.adafruit.com/turning-your-raspberry-pi-zero-into-a-usb-gadget/serial-gadget:
 
+# Raspberry Pi Connect
+1. Make sure you have your USB cable plugged into the left port **USB** and not the right port marked **PWR**.
+1. Open a connection to the device
+1. Become root (the superuser)
+    `sudo su`
+1. Enable the DWC USB peripheral device tree overlay by appending it to the end after the `[all]` category
+    `echo "dtoverlay=dwc2" >> /boot/firmware/config.txt`
+1. We add the required module `dwc2` for loading at startup
+     `echo "dwc2" >> /etc/modules`
+1. Check that we can load the libcomposite module
+      `modprobe libcomposite`
+1. Put a copy of this repository in root's home directory using git
+      ```
+	  apt install -y git
+	  git clone https://gitea.cs.ru.is/RU-V207/rover-pi.git		
+	  ```
+1. Go to Scripts and test if the `gadget.sh` runs without errors and hopefully a Serial port appers in Device Manager or equivalent
+      ```
+	  cd rover-pi/Scripts/
+	  ./gadget.sh
+	  ```
+1. Install the systemd script
+      `cp serial-ether-gadget.service /lib/systemd/system/.`
+1. Enable the getty (which connects a login terminal to the serial port)
+      ```
+	  systemctl enable serial-getty@ttyGS0.service
+	  ```
+1. Reboot and see if the serial port appears
+
+## Additional hints
+
 Look for the SD card reader on the VM under "Devices > USB" and click on it  Iff you get errors, you may have to shut down the VM and set the USB version to 2.0 or 3.0
 The Boot and Root partition should mount in Linux under /media/$USER/boot and /media/$USER/rootfs
 Navigate to /media/$USER/boot and edit: