lsusb - node27
Bus 004 Device 002: ID 8087:8002 Intel Corp.
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 8087:800a 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 003: ID 17ef:6019 Lenovo
Bus 001 Device 006: ID 413c:2106 Dell Computer Corp. Dell QuietKey Keyboard
Bus 001 Device 005: ID 0557:2419 ATEN International Co., Ltd
Bus 001 Device 004: ID 0557:7000 ATEN International Co., Ltd Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub