Section "InputClass"
	Identifier  "Marble Mouse"
	MatchProduct "Logitech USB Trackball"
	MatchIsPointer "on"
	MatchDevicePath "/dev/input/event*"
	Driver "evdev"
	Option "ButtonMapping" "1 2 3 4 5 6 7 8 9"
	Option "EmulateWheel" "true"
	Option "EmulateWheelButton" "8"
	Option "ZAxisMapping" "4 5"
	Option "XAxisMapping" "6 7"
	Option "Emulate3Buttons" "true"
EndSection