X11 Setup for Logitech TrackMan Marble
This should be in a file in /etc/X11/xorg.conf.d/ or similar.
Settings for evdev
Section "InputClass"
Identifier "Marble Mouse"
MatchProduct "Logitech USB Trackball"
MatchIsPointer "on"
MatchDevicePath "/dev/input/event*"
Driver "evdev"
Option "SendCoreEvents" "true"
# Physical buttons come from the mouse as:
# Big: 1 3
# Small: 8 9
#
# This makes left small button (8) into the middle, and puts
# scrolling on the right small button (9).
#
Option "Buttons" "9"
Option "ButtonMapping" "1 8 3 4 5 6 7 2 9"
Option "EmulateWheel" "true"
Option "EmulateWheelButton" "9"
Option "YAxisMapping" "4 5"
Option "XAxisMapping" "6 7"
EndSection