lsusb - first disk test
Bus 002 Device 002: ID 049f:0051 Compaq Computer Corp. KU-0133 Easy Access Interner Keyboard
Bus 002 Device 003: ID 058f:9360 Alcor Micro Corp. 8-in-1 Media Card Reader
Bus 004 Device 002: ID 046d:c016 Logitech, Inc. Optical Wheel Mouse
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