lsusb - GPU test
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 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:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 050d:935a Belkin Components F6D4050 N150 Enhanced Wireless Network Adapter v1000 [Ralink RT2870]
Bus 003 Device 002: ID 413c:1002 Dell Computer Corp. Keyboard Hub
Bus 003 Device 003: ID 413c:2002 Dell Computer Corp. SK-8125 Keyboard
Bus 005 Device 002: ID 056a:00d4 Wacom Co., Ltd