xorg.conf for Logitech Trackman Marble Mouse

marblemouse.conf

# https://help.ubuntu.com/community/Logitech_Marblemouse_USB
# https://wiki.archlinux.org/index.php/Logitech_Marble_Mouse
#
#       Xorg Functions
#       1 = Left Click
#       2 = Middle Click
#       3 = Right Click
#       4 = Mouse Cursor Down
#       5 = Mouse Cursor Up
#       6 = Mouse Cursor Left
#       7 = Mouse Cursor Right
#       8 = Browser Back
#       9 = Browser Forward
#
#       Xorg Physical Button Locations
#       1 = Left Large Button
#       2 = Left Small and Right Small together when Emulate3Buttons is enabled
#       3 = Right Large Button
#       8 = Left Small Button (back)
#       9 = Right Small Button (forward)
#
#       For right hand usage:
#
#        Left Large (1) = Normal Click (1)
#       Right Large (3) = Right Click (3)
#        Left Small (8) = Middle Click (2)
#       Right Small (9) = Back (8)
#       Hold Left Small (8) and move trackball to scroll
#       Press both large buttons to simulate Middle Click (2)
#
#       For left hand usage:
#
#        Left Large (1) = Right Click (3)
#       Right Large (3) = Normal Click (1)
#        Left Small (8) = Back (8)
#       Right Small (9) = Middle Click (2)
#       Hold Right Small (9) and move trackball to scroll
#       Press both large buttons to simulate Middle Click (2)

Section "InputClass"
        Identifier  "Marble Mouse"
        MatchProduct "Logitech USB Trackball"
        #MatchIsPointer "on"
        #MatchDevicePath "/dev/input/event*"

######## evdev(4) - requires xserver-xorg-input-evdev in Ubuntu 20.04
        Driver "evdev"

#       Xorg physical numbers:  1 2 3 4 5 6 7 8 9
#       Description:            L m R         l r  (m = L+R)
#
#       Right Hand:
#       Option "ButtonMapping" "1 8 3 4 5 6 7 2 8"
#
#       Left Hand:
        Option "ButtonMapping" "3 8 1 4 5 6 7 8 2"

#       EmulateWheel: Use Marble Mouse trackball as mouse wheel 
        Option "EmulateWheel" "true"

#       Right Hand:
#       Option "EmulateWheelButton" "8"

#       Left Hand:
        Option "EmulateWheelButton" "9"

#       Axis Mapping: Enable vertical [ZAxis] and horizontal [XAxis] scrolling
        Option "ZAxisMapping" "4 5"
        Option "XAxisMapping" "6 7"

#       EmulateWheelInertia: How far (in pixels) the pointer must move to
#       generate button press/release events in wheel emulation mode.
#       Factory Default: 50
        Option "EmulateWheelInertia" "10"

#       Emulate3Buttons: Press both large buttons to simulate middle click
        Option "Emulate3Buttons" "true"

######## libinput(4)
#       could never get this working how i wanted, too lazy to learn button mapping
#       Driver "libinput"
#
#       Option "ButtonMapping"        "1 2 3 4 5 6 7 9 8"
#       Option "LeftHanded"           "true" 
#       Option "MiddleEmulation"      "true"
#
#       Option "ScrollMethod"         "button"
#       Option "ScrollButton"         "9"
#       Option "HorizontalScrolling"  "true"

EndSection