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 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 5986:0241 Acer, Inc BisonCam, NB Pro
Bus 001 Device 002: ID 13d3:3273 IMC Networks 802.11 n/g/b Wireless LAN USB Mini-Card
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub