#!/bin/sh# Copyright (c) 2000, 2001 Massachusetts Institute of Technology## This program is free software; you can redistribute it and/or modify# it under the terms of the GNU General Public License as published by# the Free Software Foundation; either version 2 of the License, or (at# your option) any later version.## This program is distributed in the hope that it will be useful, but# WITHOUT ANY WARRANTY; without even the implied warranty of# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU# General Public License for more details.## You should have received a copy of the GNU General Public License# along with this program; if not, write to the Free Software# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA# 02111-1307, USA.set -eexport PATH=/bin:/usr/bin:/sbin:/usr/sbinHDPARM=/sbin/hdparm[ -x "${HDPARM}" ] || exit 0HDPARM_DRIVE=noneHDPARM_SPINDOWN=0[ ! -r /etc/apm/apmd_proxy.conf ] || . /etc/apm/apmd_proxy.conf[ -z "${HDPARM_DRIVE}" -o "${HDPARM_DRIVE}" = "none" ] && exit 0[ -b "${HDPARM_DRIVE}" ] || exit 0[ "${HDPARM_SPINDOWN}" -gt 0 ] || exit 0power_conserve (){    # Set IDE hard disk spindown time to a short time.    "${HDPARM}" -q -S "${HDPARM_SPINDOWN}" "${HDPARM_DRIVE}" || true}power_performance (){    # Disable IDE hard disk spindown.    "${HDPARM}" -q -S 0 "${HDPARM_DRIVE}" || true}choose_power (){    if on_ac_power > /dev/null    then	power_performance    else	power_conserve    fi}if [ "${1}" = "start" ]; then    choose_powerelif [ "${1}" = "resume" ] && [ "${2}" != "standby" ]; then    choose_powerelif [ "${1},${2}" = "change,power" ]; then    choose_powerelif [ "${1}" = "stop" ]; then    power_performancefiexit 0