#!/bin/sh
###############################################################################
# BRLTTY - A background process providing access to the console screen (when in
#          text mode) for a blind person using a refreshable braille display.
#
# Copyright (C) 1995-2018 by The BRLTTY Developers.
#
# BRLTTY comes with ABSOLUTELY NO WARRANTY.
#
# This is free software, placed under the terms of the
# GNU Lesser General Public License, as published by the Free Software
# Foundation; either version 2.1 of the License, or (at your option) any
# later version. Please see the file LICENSE-LGPL for details.
#
# Web Page: http://brltty.com/
#
# This software is maintained by Dave Mielke <dave@mielke.cc>.
###############################################################################

programName="${0##*/}"

programMessage() {
   echo >&2 "${programName}: ${1}"
}

programError() {
   [ -n "${1}" ] && programMessage "${1}"
   exit "${2:-2}"
}

[ -n "${ACTION}" ] || programError "action not specified."
case "${ACTION}"
in
   add)
      driver="auto"
      device="usb:"

      brltty -b"${driver}" -d"${device}" && {
         [ -n "${REMOVER}" ] && ln -s -f -- "${0}" "${REMOVER}"
      }
      ;;

   remove)
      ;;

   *) programError "action not supported: ${ACTION}"
esac

exit 0