Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 002: ID 0557:8021 ATEN International Co., Ltd 
Bus 003 Device 046: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 003 Device 004: ID 046d:0990 Logitech, Inc. QuickCam Pro 9000
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 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 003: ID 0424:2512 Standard Microsystems Corp. USB 2.0 Hub
Bus 003 Device 047: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 008: ID 05ac:828a Apple, Inc. 
Bus 002 Device 004: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 002 Device 005: ID 05ac:8242 Apple, Inc. IR Receiver [built-in]