Bus 004 Device 002: ID 04d9:1603 Holtek Semiconductor, Inc. 
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 002: ID 0d7d:0240 Phison Electronics Corp. I/O-Magic/Transcend 6-in-1 Card Reader
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub