#!/bin/sh
# Get device ID like so:
# [dbowling@gcdsrest80 ~]$ xinput list
# ⎡ Virtual core pointer id=2 [master pointer (3)]
# ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
# ⎜ ↳ Macintosh mouse button emulation id=10 [slave pointer (2)]
# ⎜ ↳ Logitech Optical USB Mouse id=11 [slave pointer (2)]
# Get prop for Scrolling Distance:
# [dbowling@gcdsrest80 ~]$ xinput list-props 11 | grep 'Scrolling Distance'
# Evdev Scrolling Distance (262): 1, 1, 1
# Assign negative values to reverse:
#xinput set-prop 10 280 -1, -1, -1
xinput set-prop 9 280 -1, -1, -1