Bus 001 Device 003: ID 05ca:1870 Ricoh Co., Ltd Webcam 1000
Bus 001 Device 002: ID 0846:9052 NetGear, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub