niek@dreamtheme:~$ lsusb # Wacom Cintiq Companion 2 not plugged in
Bus 004 Device 002: ID 8087:8000 Intel Corp.
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 8087:8008 Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0bda:b728 Realtek Semiconductor Corp.
Bus 001 Device 003: ID 5986:055e Acer, Inc
Bus 001 Device 002: ID 0457:1067 Silicon Integrated Systems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
niek@dreamtheme:~$ lsusb # Wacom Cintiq Companion 2 plugged in
Bus 004 Device 002: ID 8087:8000 Intel Corp.
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 8087:8008 Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0bda:b728 Realtek Semiconductor Corp.
Bus 001 Device 003: ID 5986:055e Acer, Inc
Bus 001 Device 002: ID 0457:1067 Silicon Integrated Systems Corp.
Bus 001 Device 015: ID 056a:0326 Wacom Co., Ltd
Bus 001 Device 016: ID 056a:0325 Wacom Co., Ltd
Bus 001 Device 014: ID 056a:0324 Wacom Co., Ltd
Bus 001 Device 013: ID 0bda:5823 Realtek Semiconductor Corp.
Bus 001 Device 012: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP210x UART Bridge / myAVR mySmartUSB light
Bus 001 Device 011: ID 056a:0327 Wacom Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub