Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 002: ID 046d:08f0 Logitech, Inc. QuickCam Messenger
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 004: ID 046d:c050 Logitech, Inc. RX 250 Optical Mouse
Bus 004 Device 003: ID 0461:0377 Primax Electronics, Ltd Medion MD 5345 Scanner
Bus 004 Device 002: ID 04cc:1122 Philips Semiconductors Hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 006: ID 046d:c310 Logitech, Inc. 
Bus 002 Device 005: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 002 Device 004: ID 05e3:0716 Genesys Logic, Inc. 
Bus 002 Device 002: ID 1b1c:1a90  
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 04a9:10c4 Canon, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub