#!/bin/bash

SERVER="128.20.180.180"
DEVID=046d:c805
CLIENTIP=$(/sbin/ifconfig eth0 | sed -n '/addr:/s/ [^r]*..//gp')

tmp=/var/tmp/usbip
install -d ${tmp}

#if [[ -n $(lsusb | grep -i ${DEVID}) ]]
#then
#	echo "Logitech Pen Connected"
#fi

WAITTIME=10

while true
do
	BUSID=$(bind_driver --list | grep -i ${DEVID}| cut -d ' ' -f4)

	if [[ -n ${BUSID} ]]
	then
		echo "BUSID: ${BUSID}"

		# abort is nothing has changed
		if [[ -f ${tmp}/${CLIENTIP} ]]  &&
			[[ ${BUSID} = $(< ${tmp}/${CLIENTIP}) ]] 
		then
			echo "USBID is the same; nothing changed"
			#exit 0
		else
			echo "exporting Logitech Pen with ID ${BUSID}"
			bind_driver --usbip ${BUSID}

			echo "${BUSID}" > ${tmp}/${CLIENTIP}
			scp ${tmp}/${CLIENTIP} root@${SERVER}:/root/usbclients/
			[[ -d ${tmp} ]] && rm -rf ${temp}
		fi
	else
		echo "No Logitech Pen (${DEVID}) found ..."
	fi

	sleep ${WAITTIME}
done