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looking at the device chain at '/sys/devices/pci0000:00/0000:00:10.1/usb2/2-2':
    BUS="usb"
    ID="2-2"
    DRIVER="usb"
    SYSFS{bConfigurationValue}="1"
    SYSFS{bDeviceClass}="00"
    SYSFS{bDeviceProtocol}="00"
    SYSFS{bDeviceSubClass}="00"
    SYSFS{bMaxPower}=" 24mA"
    SYSFS{bNumConfigurations}="1"
    SYSFS{bNumInterfaces}=" 1"
    SYSFS{bcdDevice}="0106"
    SYSFS{bmAttributes}="a0"
    SYSFS{detach_state}="0"
    SYSFS{devnum}="6"
    SYSFS{idProduct}="0002"
    SYSFS{idVendor}="051d"
    SYSFS{manufacturer}="American Power Conversion"
    SYSFS{maxchild}="0"
    SYSFS{product}="Back-UPS RS 1500 FW:8.g8 .D USB FW:g8 "
    SYSFS{serial}="QB0512330009  "
    SYSFS{speed}="1.5"
    SYSFS{version}=" 1.10"