lsusb - rzr-host-lap-lenovo-g470-20111104
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 0bda:0139 Realtek Semiconductor Corp.
Bus 001 Device 004: ID 0489:e00d Foxconn / Hon Hai
Bus 002 Device 003: ID 046d:c404 Logitech, Inc. TrackMan Wheel
Bus 002 Device 004: ID 073a:2230 Chaplet Systems, Inc.
Bus 002 Device 005: ID 5986:0292 Acer, Inc