#!/bin/zsh
getid()
{
	xinput list | grep -m 1 "$1" | sed 's/.*=\([^\t]*\).*/\1/'
}

MOUSEID1=$(getid "TPPS/2 IBM TrackPoint")

if [ -z "$(xinput list | grep '2ndMouse')" ]; then
	xinput create-master 2ndMouse
	SECOND=$(getid 2ndMouse)
	xinput reattach $MOUSEID1 $SECOND
else
	FIRST=$(getid "Virtual core pointer")
	SECOND=$(getid 2ndMouse)
	xinput reattach $MOUSEID1 $FIRST
	xinput remove-master $SECOND
fi