rescan.sh

#!/usr/bin/bash

set -eu

Path=/sys/bus/pci/devices
DevList=`ls /sys/bus/pci/devices/`

Vender_id="0x8086"
Device_id="0x1563"    # Intel x550

for devno in ${DevList}; do     
        venid=`cat ${Path}/${devno}/vendor`
        devid=`cat ${Path}/${devno}/device`

        if [ ${venid} = ${Vender_id} ] && [ ${devid} = ${Device_id} ]; then
                echo 1 > ${Path}/${devno}/remove

                sleep 1

                echo 1 > /sys/bus/pci/rescan
                echo "Rescan: Success."

                exit 1
        fi
done

echo "Rescan: Failed."