+++ /dev/null
-<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-
-<refentry id="systemd-udevd.service"
- xmlns:xi="http://www.w3.org/2001/XInclude">
-
- <refentryinfo>
- <title>systemd-udevd.service</title>
- <productname>systemd</productname>
- <authorgroup>
- <author>
- <contrib>Developer</contrib>
- <firstname>Kay</firstname>
- <surname>Sievers</surname>
- <email>kay@vrfy.org</email>
- </author>
- </authorgroup>
- </refentryinfo>
-
- <refmeta>
- <refentrytitle>systemd-udevd.service</refentrytitle>
- <manvolnum>8</manvolnum>
- </refmeta>
-
- <refnamediv>
- <refname>systemd-udevd.service</refname>
- <refname>systemd-udevd-control.socket</refname>
- <refname>systemd-udevd-kernel.socket</refname>
- <refname>systemd-udevd</refname>
- <refpurpose>Device event managing daemon</refpurpose>
- </refnamediv>
-
- <refsynopsisdiv>
- <para><filename>systemd-udevd.service</filename></para>
- <para><filename>systemd-udevd-control.socket</filename></para>
- <para><filename>systemd-udevd-kernel.socket</filename></para>
-
- <cmdsynopsis>
- <command>/usr/lib/systemd/systemd-udevd</command>
- <arg><option>--daemon</option></arg>
- <arg><option>--debug</option></arg>
- <arg><option>--children-max=</option></arg>
- <arg><option>--exec-delay=</option></arg>
- <arg><option>--event-timeout=</option></arg>
- <arg><option>--resolve-names=early|late|never</option></arg>
- <arg><option>--version</option></arg>
- <arg><option>--help</option></arg>
- </cmdsynopsis>
-
- </refsynopsisdiv>
-
- <refsect1><title>Description</title>
- <para><command>systemd-udevd</command> listens to kernel uevents.
- For every event, systemd-udevd executes matching instructions
- specified in udev rules. See <citerefentry>
- <refentrytitle>udev</refentrytitle><manvolnum>7</manvolnum>
- </citerefentry>.</para>
-
- <para>The behavior of the daemon can be configured using
- <citerefentry><refentrytitle>udev.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
- its command line options, environment variables, and on the kernel
- command line, or changed dynamically with <command>udevadm
- control</command>.
- </para>
- </refsect1>
-
- <refsect1><title>Options</title>
- <variablelist>
- <varlistentry>
- <term><option>--daemon</option></term>
- <listitem>
- <para>Detach and run in the background.</para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--debug</option></term>
- <listitem>
- <para>Print debug messages to standard error.</para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--children-max=</option></term>
- <listitem>
- <para>Limit the number of events executed in parallel.</para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--exec-delay=</option></term>
- <listitem>
- <para>Delay the execution of <varname>RUN</varname>
- instructions by the given number of seconds. This option
- might be useful when debugging system crashes during
- coldplug caused by loading non-working kernel
- modules.</para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--event-timeout=</option></term>
- <listitem>
- <para>Set the number of seconds to wait for events to finish. After
- this time the event will be terminated. The default is 30 seconds.</para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--resolve-names=</option></term>
- <listitem>
- <para>Specify when systemd-udevd should resolve names of users and groups.
- When set to <option>early</option> (the default), names will be
- resolved when the rules are parsed. When set to
- <option>late</option>, names will be resolved for every event.
- When set to <option>never</option>, names will never be resolved
- and all devices will be owned by root.</para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--help</option></term>
-
- <xi:include href="standard-options.xml" xpointer="help-text" />
- </varlistentry>
- <xi:include href="standard-options.xml" xpointer="version" />
- </variablelist>
- </refsect1>
-
- <refsect1><title>Kernel command line</title>
- <variablelist class='kernel-commandline-options'>
- <para>Parameters starting with "rd." will be read when
- <command>systemd-udevd</command> is used in an initrd.</para>
- <varlistentry>
- <term><varname>udev.log-priority=</varname></term>
- <term><varname>rd.udev.log-priority=</varname></term>
- <listitem>
- <para>Set the log level.</para>
- </listitem>
- </varlistentry>
- <varlistentry>
- <term><varname>udev.children-max=</varname></term>
- <term><varname>rd.udev.children-max=</varname></term>
- <listitem>
- <para>Limit the number of events executed in parallel.</para>
- </listitem>
- </varlistentry>
- <varlistentry>
- <term><varname>udev.exec-delay=</varname></term>
- <term><varname>rd.udev.exec-delay=</varname></term>
- <listitem>
- <para>Delay the execution of <varname>RUN</varname> instructions by the given
- number of seconds. This option might be useful when
- debugging system crashes during coldplug caused by loading
- non-working kernel modules.</para>
- </listitem>
- </varlistentry>
- <varlistentry>
- <term><varname>udev.event-timeout=</varname></term>
- <term><varname>rd.udev.event-timeout=</varname></term>
- <listitem>
- <para>Wait for events to finish up to the given number
- of seconds. This option might be useful if events are
- terminated due to kernel drivers taking too long to initialize.</para>
- </listitem>
- </varlistentry>
- <varlistentry>
- <term><varname>net.ifnames=</varname></term>
- <listitem>
- <para>Network interfaces are renamed to give them predictable names
- when possible. It is enabled by default; specifying 0 disables it.</para>
- </listitem>
- </varlistentry>
- </variablelist>
- <!-- when adding entries here, consider also adding them
- in kernel-command-line.xml -->
- </refsect1>
-
- <refsect1>
- <title>See Also</title>
- <para>
- <citerefentry><refentrytitle>udev.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>udev</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>udevadm</refentrytitle><manvolnum>8</manvolnum></citerefentry>
- </para>
- </refsect1>
-</refentry>
~ianmdlvl / elogind.git / blobdiff