lsusb - testcpu2
Bus 001 Device 005: ID 04b8:0121 Seiko Epson Corp. Perfection 2480/2580 Photo [GT-F500]
Bus 002 Device 002: ID 046d:c31c Logitech, Inc. Keyboard K120 for Business
Bus 002 Device 003: ID 03f0:0c17 Hewlett-Packard LaserJet 1010
Bus 003 Device 002: ID 046d:c050 Logitech, Inc. RX 250 Optical 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
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub