/usbengines/
drwxr-xr-x [up]
drwxr-xr-x group
drwxr-xr-x usbdevcon
drwxr-xr-x usblocodplugin
drwxr-xr-x usbotgwatcher
drwxr-xr-x usbremotepersonality
drwxr-xr-x usbwatcher