Bus 002 Device 002: ID 046d:c51b Logitech, Inc. V220 Cordless Optical Mouse for Notebooks
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 006: ID 058f:6377 Alcor Micro Corp. Multimedia Card Reader
Bus 001 Device 004: ID 03f0:2504 Hewlett-Packard DeskJet F4200 series
Bus 001 Device 003: ID 1058:0910 Western Digital Technologies, Inc. MyBook Essential External HDD
Bus 001 Device 002: ID 0bc2:3001 Seagate RSS LLC 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub