<?xml version='1.0'?> <!--*-nxml-*-->
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-
-<!--
- This file is part of systemd.
-
- Copyright 2012 Lennart Poettering
- Copyright 2013 Zbigniew Jędrzejewski-Szmek
-
- systemd is free software; you can redistribute it and/or modify it
- 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.
-
- systemd 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
--->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+<!-- SPDX-License-Identifier: LGPL-2.1+ -->
<refentry id="systemd-suspend.service"
- xmlns:xi="http://www.w3.org/2001/XInclude">
-
- <refentryinfo>
- <title>systemd-suspend.service</title>
- <productname>systemd</productname>
-
- <authorgroup>
- <author>
- <contrib>Developer</contrib>
- <firstname>Lennart</firstname>
- <surname>Poettering</surname>
- <email>lennart@poettering.net</email>
- </author>
- </authorgroup>
- </refentryinfo>
-
- <refmeta>
- <refentrytitle>systemd-suspend.service</refentrytitle>
- <manvolnum>8</manvolnum>
- </refmeta>
-
- <refnamediv>
- <refname>systemd-suspend.service</refname>
- <refname>systemd-hibernate.service</refname>
- <refname>systemd-hybrid-sleep.service</refname>
- <refname>systemd-sleep</refname>
- <refpurpose>System sleep state logic</refpurpose>
- </refnamediv>
-
- <refsynopsisdiv>
- <para><filename>systemd-suspend.service</filename></para>
- <para><filename>systemd-hibernate.service</filename></para>
- <para><filename>systemd-hybrid-sleep.service</filename></para>
- <para><filename>/usr/lib/systemd/system-sleep</filename></para>
- </refsynopsisdiv>
-
- <refsect1>
- <title>Description</title>
-
- <para><filename>systemd-suspend.service</filename> is
- a system service that is pulled in by
- <filename>suspend.target</filename> and is responsible
- for the actual system suspend. Similarly,
- <filename>systemd-hibernate.service</filename> is
- pulled in by <filename>hibernate.target</filename> to
- execute the actual hibernation. Finally,
- <filename>systemd-hybrid-sleep.service</filename> is
- pulled in by <filename>hybrid-sleep.target</filename>
- to execute hybrid hibernation with system
- suspend.</para>
-
- <para>Immediately before entering system suspend
- and/or hibernation
- <filename>systemd-suspend.service</filename> (and the
- other mentioned units, respectively) will run all
- executables in
- <filename>/usr/lib/systemd/system-sleep/</filename>
- and pass two arguments to them. The first argument
- will be <literal>pre</literal>, the second either
- <literal>suspend</literal>,
- <literal>hibernate</literal>, or
- <literal>hybrid-sleep</literal> depending on the
- chosen action. Immediately after leaving system
- suspend and/or hibernation the same executables are run,
- but the first argument is now
- <literal>post</literal>. All executables in this
- directory are executed in parallel, and execution of
- the action is not continued until all executables
- have finished.</para>
-
- <para>Note that scripts or binaries dropped in
- <filename>/usr/lib/systemd/system-sleep/</filename>
- are intended for local use only and should be
- considered hacks. If applications want to be notified
- of system suspend/hibernation and resume, there are
- much nicer interfaces available.</para>
-
- <para>Note that
- <filename>systemd-suspend.service</filename>,
- <filename>systemd-hibernate.service</filename>, and
- <filename>systemd-hybrid-sleep.service</filename>
- should never be executed directly. Instead, trigger
- system sleep states with a command such as
- <literal>systemctl suspend</literal> or
- similar.</para>
-
- <para>Internally, this service will echo a string like
- <literal>mem</literal> into
- <filename>/sys/power/state</filename>, to trigger the
- actual system suspend. What exactly is written
- where can be configured in the <literal>[Sleep]</literal>
- section of <filename>/etc/systemd/sleep.conf</filename>.
- See <citerefentry><refentrytitle>systemd-sleep.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
- </para>
- </refsect1>
-
- <refsect1>
- <title>Options</title>
-
- <para><command>systemd-sleep</command> understands the
- following commands:</para>
-
- <variablelist>
- <xi:include href="standard-options.xml" xpointer="help" />
- <xi:include href="standard-options.xml" xpointer="version" />
-
- <varlistentry>
- <term><option>suspend</option></term>
- <term><option>hibernate</option></term>
- <term><option>hybrid-sleep</option></term>
-
- <listitem><para>Suspend, hibernate, or
- put the system to hybrid sleep.</para>
- </listitem>
- </varlistentry>
- </variablelist>
- </refsect1>
-
- <refsect1>
- <title>See Also</title>
- <para>
- <citerefentry><refentrytitle>systemd-sleep.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>systemd-halt.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
- </para>
- </refsect1>
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>systemd-suspend.service</title>
+ <productname>systemd</productname>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>systemd-suspend.service</refentrytitle>
+ <manvolnum>8</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>systemd-suspend.service</refname>
+ <refname>systemd-hibernate.service</refname>
+ <refname>systemd-hybrid-sleep.service</refname>
+ <refname>systemd-suspend-then-hibernate.service</refname>
+ <refname>systemd-sleep</refname>
+ <refpurpose>System sleep state logic</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <para><filename>systemd-suspend.service</filename></para>
+ <para><filename>systemd-hibernate.service</filename></para>
+ <para><filename>systemd-hybrid-sleep.service</filename></para>
+ <para><filename>systemd-suspend-then-hibernate.service</filename></para>
+ <para><filename>/usr/lib/systemd/system-sleep</filename></para>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><filename>systemd-suspend.service</filename> is a system
+ service that is pulled in by <filename>suspend.target</filename>
+ and is responsible for the actual system suspend. Similarly,
+ <filename>systemd-hibernate.service</filename> is pulled in by
+ <filename>hibernate.target</filename> to execute the actual
+ hibernation. Finally,
+ <filename>systemd-hybrid-sleep.service</filename> is pulled in by
+ <filename>hybrid-sleep.target</filename> to execute hybrid
+ hibernation with system suspend and pulled in by
+ <filename>suspend-then-hibernate.target</filename> to execute system suspend
+ with a timeout that will activate hibernate later.</para>
+
+ <para>Immediately before entering system suspend and/or
+ hibernation <filename>systemd-suspend.service</filename> (and the
+ other mentioned units, respectively) will run all executables in
+ <filename>/usr/lib/systemd/system-sleep/</filename> and pass two
+ arguments to them. The first argument will be
+ <literal>pre</literal>, the second either
+ <literal>suspend</literal>, <literal>hibernate</literal>,
+ <literal>hybrid-sleep</literal>, or <literal>suspend-then-hibernate</literal>
+ depending on the chosen action.
+ Immediately after leaving system suspend and/or hibernation the
+ same executables are run, but the first argument is now
+ <literal>post</literal>. All executables in this directory are
+ executed in parallel, and execution of the action is not continued
+ until all executables have finished.</para>
+
+ <para>Note that scripts or binaries dropped in
+ <filename>/usr/lib/systemd/system-sleep/</filename> are intended
+ for local use only and should be considered hacks. If applications
+ want to react to system suspend/hibernation and resume,
+ they should rather use the <ulink
+ url="https://www.freedesktop.org/wiki/Software/systemd/inhibit">Inhibitor
+ interface</ulink>.</para>
+
+ <para>Note that
+ <filename>systemd-suspend.service</filename>,
+ <filename>systemd-hibernate.service</filename>, and
+ <filename>systemd-hybrid-sleep.service</filename>
+ <filename>systemd-suspend-then-hibernate.service</filename>
+ should never be executed directly. Instead, trigger system sleep
+ states with a command such as <literal>systemctl suspend</literal>
+ or similar.</para>
+
+ <para>Internally, this service will echo a string like
+ <literal>mem</literal> into <filename>/sys/power/state</filename>,
+ to trigger the actual system suspend. What exactly is written
+ where can be configured in the <literal>[Sleep]</literal> section
+ of <filename>/etc/systemd/sleep.conf</filename> or a
+ <filename>sleep.conf.d</filename> file. See
+ <citerefentry><refentrytitle>systemd-sleep.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Options</title>
+
+ <para><command>systemd-sleep</command> understands the
+ following commands:</para>
+
+ <variablelist>
+ <xi:include href="standard-options.xml" xpointer="help" />
+ <xi:include href="standard-options.xml" xpointer="version" />
+
+ <varlistentry>
+ <term><option>suspend</option></term>
+ <term><option>hibernate</option></term>
+ <term><option>hybrid-sleep</option></term>
+ <term><option>suspend-then-hibernate</option></term>
+
+ <listitem><para>Suspend, hibernate, suspend then hibernate, or put the
+ system to hybrid sleep.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd-sleep.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd-halt.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ </para>
+ </refsect1>
</refentry>
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