openbsd-scripts/enable-apmd.ksh
2023-12-05 17:06:41 -05:00

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#!/bin/ksh
# enable-apmd.ksh
# Enable the Advanced Power Management daemon with settings that prevent
# the battery from running out before a proper shutdown
# Copyright (c) 2023, Scott C. MacCallum (scm@sdf.org)
# All rights reserved.
# Redistribution and use of this software in source and binary forms, with or
# without modification, are permitted provided that the following conditions
# are met:
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# * Neither the name of Scott C. MacCallum nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission of Scott C.
# MacCallum.
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# Enable the power manager and start it at boot. Have it adjust automatically
# to power needs. Put the computer in suspend mode when 15% of the battery is
# left.
rcctl enable apmd
rcctl set apmd flags -A -z 15
rcctl start apmd
exit 0