Bus 003 Device 003: ID 413c:2107 Dell Computer Corp. 
Bus 003 Device 002: ID 046d:c05b Logitech, Inc. 
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 8087:0024  
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 05ca:1820 Ricoh Co., Ltd 
Bus 001 Device 004: ID 138a:0011 DigitalPersona, Inc 
Bus 001 Device 003: ID 0bda:0138 Realtek Semiconductor Corp. 
Bus 001 Device 002: ID 8087:0024  
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub