find_usb_hubs_with_id.sh

#!/bin/bash

VENDOR_ID=2109
PRODUCT_ID=2817

# find all devices which match our product id
for f in $(grep --include='idProduct' -rlw "$PRODUCT_ID"  /sys/bus/usb/devices/usb* 2>/dev/null); do
        device=$(dirname $f)

        # ensure that vendor id also matches
        if [[ $(cat ${device}/idVendor) != $VENDOR_ID ]]; then
                continue
        fi

        # basename of the sysfs path is our device path
        # the root port is stripped from the device path (part before the first dash)
        devpath=$(basename $device | cut -f 2 -d -)

        echo $devpath
done