Touchpad and wheel buttons

[Fernando Apesteguía]

Hi all,

I'm using FreeBSD 8.0 BETA1, but I post in this list cause I had the
same problem in 7.2, since it is Xorg related.
I have a laptop. The touchpad provides 4 buttons. Two of them are the
normal "left" and "right" buttons and the other two should provide the
wheel-like functionality, scrolling windows up and down.

However, the behavior is quite different. In Firefox, for example, if
I click on the touchpad area, I go back to the previous web site. The
same for the wheel-down button. The wheel up button doesn't do
anything. I disabled the "AutoAddDevices" in xorg.conf and added a
mouse section:

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Protocol" "auto"
        Option      "Device" "/dev/sysmouse"
        Option      "ZAxisMapping" "4 5 6 7"
EndSection

It doesn't work either. I tried to change the protocol from "auto" to
"IMPS/2" but it hangs Xorg.

How can I configure the touchpad?

Thanks in advance.