6408N/A<!
DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" 6408N/A <
productname>systemd</
productname>
6408N/A <
contrib>Developer</
contrib>
6408N/A <
email>kay@vrfy.org</
email>
6408N/A <
refmiscinfo class="version"></
refmiscinfo>
6408N/A <
refname>systemd-udevd</
refname>
6408N/A <
refpurpose>Device event managing daemon</
refpurpose>
6408N/A <
arg><
option>--daemon</
option></
arg>
6408N/A <
arg><
option>--debug</
option></
arg>
6408N/A <
arg><
option>--children-max=</
option></
arg>
6408N/A <
arg><
option>--exec-delay=</
option></
arg>
6408N/A <
arg><
option>--resolve-names=early|late|never</
option></
arg>
6408N/A <
arg><
option>--version</
option></
arg>
6408N/A <
arg><
option>--help</
option></
arg>
6408N/A <
refsect1><
title>Description</
title>
6408N/A <
para><
command>systemd-udevd</
command> listens to kernel uevents.
6408N/A For every event, systemd-udevd executes matching instructions
6408N/A specified in udev rules. See <
citerefentry>
6408N/A <
refentrytitle>udev</
refentrytitle><
manvolnum>7</
manvolnum>
6408N/A <
para>The behavior of the running daemon can be changed with
6408N/A <
command>udevadm control</
command>.</
para>
6408N/A <
refsect1><
title>Options</
title>
6408N/A <
term><
option>--daemon</
option></
term>
6408N/A <
para>Detach and run in the background.</
para>
6408N/A <
term><
option>--debug</
option></
term>
6408N/A <
para>Print debug messages to stderr.</
para>
6408N/A <
term><
option>--children-max=</
option></
term>
6408N/A <
para>Limit the number of events executed in parallel.</
para>
6408N/A <
term><
option>--exec-delay=</
option></
term>
6408N/A <
para>Delay the execution of RUN intruction by the given
6408N/A number of seconds. This option might be useful when
6408N/A debugging system crashes during coldplug caused by loading
6408N/A non-working kernel modules.</
para>
6408N/A <
term><
option>--resolve-names=</
option></
term>
6408N/A <
para>Specify when systemd-udevd should resolve names of users and groups.
6408N/A When set to <
option>early</
option> (the default) names will be
6408N/A resolved when the rules are parsed. When set to
6408N/A <
option>late</
option> names will be resolved for every event.
6408N/A When set to <
option>never</
option> names will never be resolved
6408N/A and all devices will be owned by root.</
para>
6408N/A <
term><
option>--version</
option></
term>
6408N/A <
para>Print version number.</
para>
6408N/A <
term><
option>--help</
option></
term>
6408N/A <
para>Print help text.</
para>
6408N/A <
refsect1><
title>Environment</
title>
6408N/A <
term><
varname>UDEV_LOG=</
varname></
term>
6408N/A <
para>Set the logging priority.</
para>
6408N/A <
refsect1><
title>Kernel command line</
title>
6408N/A <
para>Parameters starting with "rd." will be read when
6408N/A <
command>systemd-udevd</
command> is used in an initrd.</
para>
6408N/A <
para>Set the logging priority.</
para>
6408N/A <
para>Limit the number of events executed in parallel.</
para>
6408N/A <
para>Delay the execution of RUN intruction by the given
6408N/A number of seconds. This option might be useful when
6408N/A debugging system crashes during coldplug caused by loading
6408N/A non-working kernel modules.</
para>
6408N/A <
refentrytitle>udev</
refentrytitle><
manvolnum>7</
manvolnum>
</
citerefentry>, <
citerefentry>
<
refentrytitle>udevadm</
refentrytitle><
manvolnum>8</
manvolnum>