/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=hub, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
    /sys/bus/usb/devices/usb1  /dev/bus/usb/001/001
    |__ Port 2: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 480M
        ID 203a:fffc PARALLELS 
        /sys/bus/usb/devices/1-2  /dev/bus/usb/001/002
    |__ Port 2: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 480M
        ID 203a:fffc PARALLELS 
        /sys/bus/usb/devices/1-2  /dev/bus/usb/001/002
    |__ Port 6: Dev 3, If 0, Class=Printer, Driver=usblp, 480M
        ID 203a:fffa PARALLELS 
        /sys/bus/usb/devices/1-6  /dev/bus/usb/001/003
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=hub, 12M
    ID 1d6b:0001 Linux Foundation 1.1 root hub
    /sys/bus/usb/devices/usb2  /dev/bus/usb/002/001
    |__ Port 2: Dev 22, If 0, Class=Hub, Driver=hub, 12M
        ID 203a:fffe PARALLELS 
        /sys/bus/usb/devices/2-2  /dev/bus/usb/002/022
        |__ Port 1: Dev 23, If 0, Class=Communications, Driver=cdc_acm, 12M
            ID 1366:1050 SEGGER 
            /sys/bus/usb/devices/2-2.1  /dev/bus/usb/002/023
        |__ Port 1: Dev 23, If 1, Class=CDC Data, Driver=cdc_acm, 12M
            ID 1366:1050 SEGGER 
            /sys/bus/usb/devices/2-2.1  /dev/bus/usb/002/023
        |__ Port 1: Dev 23, If 2, Class=Communications, Driver=cdc_acm, 12M
            ID 1366:1050 SEGGER 
            /sys/bus/usb/devices/2-2.1  /dev/bus/usb/002/023
        |__ Port 1: Dev 23, If 3, Class=CDC Data, Driver=cdc_acm, 12M
            ID 1366:1050 SEGGER 
            /sys/bus/usb/devices/2-2.1  /dev/bus/usb/002/023
        |__ Port 1: Dev 23, If 4, Class=Vendor Specific Class, Driver=, 12M
            ID 1366:1050 SEGGER 
            /sys/bus/usb/devices/2-2.1  /dev/bus/usb/002/023
        |__ Port 8: Dev 24, If 0, Class=Communications, Driver=cdc_acm, 12M
            ID 1d50:6018 OpenMoko, Inc. Black Magic Debug Probe (Application)
            /sys/bus/usb/devices/2-2.8  /dev/bus/usb/002/024
        |__ Port 8: Dev 24, If 1, Class=CDC Data, Driver=cdc_acm, 12M
            ID 1d50:6018 OpenMoko, Inc. Black Magic Debug Probe (Application)
            /sys/bus/usb/devices/2-2.8  /dev/bus/usb/002/024
        |__ Port 8: Dev 24, If 2, Class=Communications, Driver=cdc_acm, 12M
            ID 1d50:6018 OpenMoko, Inc. Black Magic Debug Probe (Application)
            /sys/bus/usb/devices/2-2.8  /dev/bus/usb/002/024
        |__ Port 8: Dev 24, If 3, Class=CDC Data, Driver=cdc_acm, 12M
            ID 1d50:6018 OpenMoko, Inc. Black Magic Debug Probe (Application)
            /sys/bus/usb/devices/2-2.8  /dev/bus/usb/002/024
        |__ Port 8: Dev 24, If 4, Class=Application Specific Interface, Driver=, 12M
            ID 1d50:6018 OpenMoko, Inc. Black Magic Debug Probe (Application)
            /sys/bus/usb/devices/2-2.8  /dev/bus/usb/002/024
        |__ Port 8: Dev 24, If 5, Class=Vendor Specific Class, Driver=, 12M
            ID 1d50:6018 OpenMoko, Inc. Black Magic Debug Probe (Application)
            /sys/bus/usb/devices/2-2.8  /dev/bus/usb/002/024
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=hub, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
    /sys/bus/usb/devices/usb3  /dev/bus/usb/003/001
/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=hub, 10000M
    ID 1d6b:0003 Linux Foundation 3.0 root hub
    /sys/bus/usb/devices/usb4  /dev/bus/usb/004/001
