Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 03f0:8704 Hewlett-Packard DeskJet 5940
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 005: ID 413c:2106 Dell Computer Corp. Dell QuietKey Keyboard
Bus 002 Device 004: ID 0461:4d51 Primax Electronics, Ltd 
Bus 002 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 002 Device 002: ID 046d:081d Logitech, Inc. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub