an eink camera running on an rpi zero 2 w
dunkirk.sh
1#!/usr/bin/env bash
2# setup_gadget_mode.sh - Script to configure USB gadget mode on a Raspberry Pi SD card
3
4# Check if SD card boot partition is provided
5if [ $# -lt 1 ]; then
6 if [ -d "/run/media/$(whoami)/bootfs" ]; then
7 BOOT_PARTITION="/run/media/$(whoami)/bootfs"
8 else
9 echo "Usage: $0 /path/to/sd_card_boot_partition"
10 exit 1
11 fi
12else
13 BOOT_PARTITION=$1
14fi
15
16# Verify the boot partition exists
17if [ ! -d "$BOOT_PARTITION" ]; then
18 echo "Error: Boot partition not found at $BOOT_PARTITION"
19 exit 1
20fi
21
22echo "Configuring USB gadget mode on $BOOT_PARTITION..."
23
24# Modify config.txt to enable dwc2 overlay
25CONFIG_FILE="$BOOT_PARTITION/config.txt"
26if [ -f "$CONFIG_FILE" ]; then
27 if ! grep -q "dtoverlay=dwc2" "$CONFIG_FILE"; then
28 echo "Adding dtoverlay=dwc2 to config.txt..."
29 echo "dtoverlay=dwc2" >> "$CONFIG_FILE"
30 else
31 echo "dtoverlay=dwc2 already exists in config.txt"
32 fi
33else
34 echo "Error: config.txt not found in boot partition"
35 exit 1
36fi
37
38# Modify cmdline.txt to load required modules
39CMDLINE_FILE="$BOOT_PARTITION/cmdline.txt"
40if [ -f "$CMDLINE_FILE" ]; then
41 if ! grep -q "modules-load=dwc2,g_ether" "$CMDLINE_FILE"; then
42 echo "Adding modules-load=dwc2,g_ether to cmdline.txt..."
43 sed -i 's/$/ modules-load=dwc2,g_ether/' "$CMDLINE_FILE"
44 else
45 echo "modules-load=dwc2,g_ether already exists in cmdline.txt"
46 fi
47else
48 echo "Error: cmdline.txt not found in boot partition"
49 exit 1
50fi
51
52# Create empty ssh file to enable SSH
53SSH_FILE="$BOOT_PARTITION/ssh"
54if [ ! -f "$SSH_FILE" ]; then
55 echo "Creating empty ssh file to enable SSH..."
56 touch "$SSH_FILE"
57else
58 echo "SSH already enabled"
59fi
60
61echo "USB gadget mode configuration complete!"
62echo "Now you can insert the SD card into your Raspberry Pi and boot it."
63echo "After booting, you should be able to connect via: ssh ink@inky.local"
64echo "Default password: inkycamera"