debian% lsusb
Bus 001 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 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 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 04bb:0532 I-O Data Device, Inc.
Bus 003 Device 003: ID 046d:081b Logitech, Inc. Webcam C310
Bus 004 Device 002: ID 1b1c:1b02 Corsair
Bus 007 Device 002: ID 1af3:0001
Bus 007 Device 003: ID 1852:7022 GYROCOM C&C Co., LTD