lsusb - testvent2
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 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 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 046d:c00c Logitech, Inc. Optical Wheel Mouse
Bus 005 Device 002: ID 046d:0b07 Logitech, Inc.
Bus 006 Device 002: ID 059b:047a Iomega Corp. Select Portable Hard Drive
Bus 007 Device 002: ID 1058:1042 Western Digital Technologies, Inc.
Bus 005 Device 003: ID 046d:c71e Logitech, Inc.
Bus 005 Device 004: ID 046d:c71f Logitech, Inc. diNovo Mini Wireless Keyboard