/sys/bus/usb/devices/7-1/manufacturer
/sys/bus/usb/devices/usb1/manufacturer
/sys/bus/usb/devices/usb2/manufacturer
/sys/bus/usb/devices/usb3/manufacturer
/sys/bus/usb/devices/usb4/manufacturer
/sys/bus/usb/devices/usb5/manufacturer
/sys/bus/usb/devices/usb6/manufacturer
/sys/bus/usb/devices/usb7/manufacturer
/sys/bus/usb/devices/usb8/manufacturer
/sys/bus/usb/devices/usb9/manufacturer