systemd-stable/udevd.xml

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<article>
  <section>
    <title>udevd, udevcontrol</title>
    <refentry>
      <refentryinfo>
        <title>udevd</title>
        <date>August 2005</date>
        <productname>udev</productname>
      </refentryinfo>

      <refmeta>
        <refentrytitle>udevd</refentrytitle>
        <manvolnum>8</manvolnum>
        <refmiscinfo class="version"></refmiscinfo>
      </refmeta>

      <refnamediv>
        <refname>udevd</refname><refpurpose>event managing daemon</refpurpose>
      </refnamediv>

      <refsynopsisdiv>
        <cmdsynopsis>
          <command>udevd</command>
          <arg><option>--daemon</option></arg>
        </cmdsynopsis>
        <cmdsynopsis>
          <command>udevcontrol <replaceable>command</replaceable></command>
        </cmdsynopsis>
      </refsynopsisdiv>

      <refsect1><title>DESCRIPTION</title>
        <para>udevd listens to kernel uevents and passes the incoming events to
        udev. It ensures the right event order and takes care, that events for child
        devices are delayed until the parent has finished the device handling. </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>log_priority=<replaceable>value</replaceable></option></term>
            <listitem>
              <para>udevcontrol can dynamically set the log level of udevd.
              Valid values are the numerical syslog priorities or their textual
              representations: <option>err</option>, <option>info</option>
              and <option>debug</option>.</para>
            </listitem>
          </varlistentry>
          <varlistentry>
            <term><option>stop_exec_queue</option></term>
            <listitem>
              <para>udevcontrol stops the execution of events from udevd.</para>
            </listitem>
          </varlistentry>
          <varlistentry>
            <term><option>start_exec_queue</option></term>
            <listitem>
              <para>udevcontrol starts the execution of events from udevd.</para>
            </listitem>
          </varlistentry>
        </variablelist>
      </refsect1>

      <refsect1><title>ENVIRONMENT</title>
        <variablelist>
          <varlistentry>
            <term><option>UDEV_LOG</option></term>
            <listitem>
              <para>Overrides the syslog priority specified in the config file.</para>
            </listitem>
          </varlistentry>
        </variablelist>
     </refsect1>

      <refsect1><title>AUTHOR</title>
        <para>Written by Kay Sievers <email>kay.sievers@vrfy.org</email>.</para>
      </refsect1>

      <refsect1>
        <title>SEE ALSO</title>
        <para><citerefentry>
            <refentrytitle>udev</refentrytitle><manvolnum>7</manvolnum>
        </citerefentry></para>
      </refsect1>
    </refentry>
  </section>
</article>