You could try my script to disable devices: [Guide] Automatically disable USB devices for battery savings
and then use systemd to automatically run it before & after suspend. See Running scripts before and after suspend with systemd – Just another Linux geek for details.
e.g. something like this:
#! /bin/sh
if [ "${1}" == "pre" ]; then
command=off
else
command=on
fi
turn_usb --vendor-id=FOO --product-id=BAR $command