Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 0402:9665 ALi Corp. Gateway Webcam
Bus 002 Device 003: ID 04e8:1f05 Samsung Electronics Co., Ltd 
Bus 002 Device 004: ID 15d9:0a4c Trust International B.V. USB+PS/2 Optical Mouse