Bus 002 Device 002: ID 058f:a001 Alcor Micro Corp. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 04ca:0061 Lite-On Technology Corp. 
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub