lsusb - msi gt72 a
Bus 004 Device 003: ID 1770:ff00
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 004: ID 064e:9805 Suyin Corp.
Bus 003 Device 003: ID 0cf3:3004 Atheros Communications, Inc. AR3012 Bluetooth 4.0
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 046d:c404 Logitech, Inc. TrackMan Wheel
Bus 001 Device 003: ID 06a3:8021 Saitek PLC Eclipse II Keyboard
Bus 001 Device 002: ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub