usbhub_rebind.sh - USB hub rebind.

usbhub_rebind.sh

#!/usr/bin/env bash
#
# USB hub rebind
# Copyright (c) 2017 Koichi OKADA. All rights reserved.
# This script is distributed under the MIT license.
#

function usbhub_rebind () #= usb[0-9]+
{
  local PCIDEV="$(realpath "/sys/bus/usb/devices/${1}")"
  PCIDEV="${PCIDEV%/*}"
  local DRIVER="$(realpath "${PCIDEV}/driver")"
  local PCIBUS="${PCIDEV##*/}"
  cat<<-EOD
	echo "${PCIBUS}" | sudo tee "${DRIVER}/unbind"
	sleep 1
	echo "${PCIBUS}" | sudo tee "${DRIVER}/bind"
	EOD
}

if (( $# < 1 )); then
  cat<<-EOD
	Usage: ${0##*/} ubs[0-9]+ ... | sh
	
	EOD
  exit 1
fi

for i in "$@"; do
  usbhub_rebind "$i"
done