Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 15d9:0a4d Dexon 
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 004: ID 174f:5212 Syntek USB 2.0 UVC PC Camera
Bus 001 Device 003: ID 0bda:0158 Realtek Semiconductor Corp. Mass Storage Device
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub