Comment # 4 on bug 1027349 from Alex Armstrong

Here is the hwinfo for the Trackpoint:

    62: PS/2 00.0: 10500 PS/2 Mouse
      [Created at input.249]
      Unique ID: AH6Q.6X7JqAUSR5C
      Hardware Class: mouse
      Model: "TPPS/2 IBM TrackPoint"
      Vendor: 0x0002 
      Device: 0x000a "TPPS/2 IBM TrackPoint"
      Compatible to: int 0x0210 0x0002
      Device File: /dev/input/mice (/dev/input/mouse1)
      Device Files: /dev/input/mice, /dev/input/mouse1, /dev/input/event2
      Device Number: char 13:63 (char 13:33)
      Driver Info #0:
        Buttons: 2
        Wheels: 0
        XFree86 Protocol: explorerps/2
        GPM Protocol: exps2
      Config Status: cfg=no, avail=yes, need=no, active=unknown

There are a few minor differences between this and an older ThinkPad where the
Trackpoint works:

    'Unique ID' is different - (I would hope so)
    'Compatible to' of old is: int 0x0210 0x003
    'Device Files' also lists files for /dev/input/by-path/...
    'Device Number' of old is : char 13:63 (char 13:34)
    'Buttons' is: 3
    'cfg=' is of old is: new

Otherwise the same.

Looking at the /sys directory:
    readlink dev/char/13\:33
    ../../devices/platform/i8042/serio1/serio2/input/input3/mouse1

Let me know what else I can provide.
-Alex