Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 003: ID 045e:009d Microsoft Corp. 
Bus 003 Device 002: ID 0c45:602c Microdia Clas Ohlson TWC-30XOP WebCam
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 003: ID 148f:2573 Ralink Technology, Corp. RT2501USB Wireless Adapter
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub