lsusb - Ubuntu 11.10
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 1532:0007 Razer USA, Ltd DeathAdder Mouse
Bus 001 Device 005: ID 046d:c223 Logitech, Inc. G11/G15 Keyboard / USB Hub
Bus 001 Device 006: ID 046d:c226 Logitech, Inc. G15 Refresh Keyboard
Bus 001 Device 007: ID 046d:c227 Logitech, Inc. G15 Refresh Keyboard