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 c0f4:03a0  
Bus 001 Device 002: ID 04d9:fa52 Holtek Semiconductor, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub