Wheel Emulation on 2 Button Trackball

[kkubasik]

I have a generic trackball mouse with 2 buttons, I want to press both buttons and move the wheel, with results similar to that of a scroll wheel. The following is the relevant section of my xorg.conf

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"Emulate3Buttons"	"true"
	Option 		"EmulateWheel" 		"on"
	Option 		"EmulateWheelButton" 	"4"
EndSection

The sticking point seems to be the 'EmulateWheelButton" option, when set to 3, I have the desired functionality, but not when I press both buttons, instead it works whenever I hold the right button. This obviously poses a problem as right-click functionality is quite important. The above configuration does not give me the scroll wheel functionality at all.

Anyone done this before or have any bright ideas?

[loft306]

you need to have 2 buttons listod to make this work probably
use the app 'xev' to figure out buttons to choose

also try changing the protocol