Disables the power and sleep keys on the ROG Falchion keyboard via udev hwdb rules.

disable_rog_falchion_power_keys.sh

#!/bin/bash
set -e  # Exit immediately on error

# Ensure script is run as root
if [[ $EUID -ne 0 ]]; then
    echo "Error: This script must be run as root (use sudo)." >&2
    exit 1
fi

echo "Detecting ROG Falchion keyboard..."

# Verify required commands are available
for cmd in udevadm systemd-hwdb tee; do
    if ! command -v "$cmd" &>/dev/null; then
        echo "Error: Required command '$cmd' not found." >&2
        exit 1
    fi
done

# Locate the keyboard device
DEVICE_PATH="/dev/input/by-id/usb-ASUSTeK_ROG_FALCHION-event-kbd"
if [[ ! -e "$DEVICE_PATH" ]]; then
    echo "Error: ROG Falchion keyboard not detected. Ensure it is connected." >&2
    exit 1
fi

# Extract vendor, product, and revision IDs
DEVICE_INFO=$(udevadm info "$DEVICE_PATH")
VENDOR_ID=$(echo "$DEVICE_INFO" | grep -oP 'ID_VENDOR_ID=\K[0-9a-f]+')
PRODUCT_ID=$(echo "$DEVICE_INFO" | grep -oP 'ID_MODEL_ID=\K[0-9a-f]+')
REVISION=$(echo "$DEVICE_INFO" | grep -oP 'ID_REVISION=\K[0-9a-f]+')

if [[ -z "$VENDOR_ID" || -z "$PRODUCT_ID" || -z "$REVISION" ]]; then
    echo "Error: Failed to extract device identifiers." >&2
    exit 1
fi

echo "Detected ROG Falchion - Vendor: $VENDOR_ID, Product: $PRODUCT_ID, Revision: $REVISION"

# Define hwdb file path
HWDB_FILE="/etc/udev/hwdb.d/99-asus-falchion.hwdb"

# Update hwdb rules
echo "Updating $HWDB_FILE..."
tee "$HWDB_FILE" > /dev/null <<EOF
evdev:input:b*v${VENDOR_ID}p${PRODUCT_ID}e${REVISION}*
  KEYBOARD_KEY_10081=reserved
  KEYBOARD_KEY_10082=reserved
EOF

# Apply the changes
echo "Applying udev rules..."
systemd-hwdb update
udevadm trigger

echo "Success! Power and sleep keys should now be disabled."
echo "You can test with: sudo evtest"