Hello,
I got a PS/2 mouse for my laptop, and it works fine.  However, my 
touchpad also works along with my mouse.  Is there a way to disable just 
the touchpad?  When I check the number of devices connected to wsmouse, I 
get back only wsmouse0:
wsmuxctl -f /dev/wsmouse -l
wsmouse0

So the two mouses appear to be on the same mux.  (As a side note, Windows 
refers to my touchpad as a "PS/2" mouse.)

Here is the relevant portion from /etc/X11/Xf86config:
     Identifier  "Mouse1"
     Driver      "mouse"
     Option "Protocol"    "wsmouse"
     Option "Device"      "/dev/wsmouse0"
     Option "ZAxisMapping" "4 5"

Thanks,
Yasir