/kernel: ums0: Microsoft Microsoft IntelliMouse TM Optical, rev 1.10/1.08, addr 4, iclass 3/1
/kernel: ums0: 5 buttons and Z dir.

TM は登録商標
port 2 addr 4: low speed, power 100 mA, config 1, Microsoft IntelliMouse Optical(0x0029), Microsoft(0x045e), rev 1.08 

/etc/usbd.conf に追加
device "Mouse" 
        devname "ums[0-9]+" 
        attach "/usr/sbin/moused -p /dev/${DEVNAME} -I /var/run/moused.${DEVNAME}.pid" 

/etc/X11/XF86Config 該当部分 
Section "ServerLayout" 
        Identifier     "XFree86 Configured" 
        Screen      0  "Screen0" 0 0 
        InputDevice    "IntelliMouse Optical" "CorePointer" 
        InputDevice    "HHKB Lite2" "CoreKeyboard" 
EndSection 
 
Section "InputDevice" 
        Identifier  "IntelliMouse Optical" 
        Driver      "mouse" 
        Option      "Protocol" "auto" 
        Option      "Device" "/dev/sysmouse" 
        Option      "Buttons" "7" 
        Option      "ZAxisMapping" "4 5" 
EndSection