razercfg udev rule to automatically set DPI when the mouse is connected

91-razer-udev.rules

# UDEV rules for razer devices
# Change script path!

ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="1532", ATTR{idProduct}=="0015", RUN+="/home/david/bin/razer-connect.sh"
ACTION=="remove", SUBSYSTEM=="usb", RUN+="/usr/local/bin/razercfg -B -S1 -s"

razer-connect.sh

#!/bin/bash

# This script is run by udev when Razer Naga mouse is connected.
# Sets the DPI and displays a message on notify-send

export DISPLAY=:0

# Scan resolution (*1000)
RES=30

# Show a message via notify-send, including icon
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
notify-send 'Razer Naga Connected' "Resolution set to $RES DPI" -i "$DIR/razer-connect.ico"

# Set scan resolution
razercfg -r "1:$RES"