Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 27c6:5395  
Bus 001 Device 002: ID 0cf3:e300 Atheros Communications, Inc. 
Bus 001 Device 004: ID 0c45:671d Microdia 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub