mirror of
https://github.com/systemd/systemd.git
synced 2024-10-30 14:55:37 +03:00
355 lines
14 KiB
XML
355 lines
14 KiB
XML
|
<?xml version='1.0'?>
|
||
|
|
<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
||
|
|
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
||
|
|
|
||
|
|
<article>
|
||
|
|
<section>
|
||
|
|
<title>udevadm</title>
|
||
|
|
<refentry>
|
||
|
|
<refentryinfo>
|
||
|
|
<title>udevd</title>
|
||
|
|
<date>November 2007</date>
|
||
|
|
<productname>udev</productname>
|
||
|
|
</refentryinfo>
|
||
|
|
|
||
|
|
<refmeta>
|
||
|
|
<refentrytitle>udevadm</refentrytitle>
|
||
|
|
<manvolnum>8</manvolnum>
|
||
|
|
<refmiscinfo class="version"></refmiscinfo>
|
||
|
|
</refmeta>
|
||
|
|
|
||
|
|
<refnamediv>
|
||
|
|
<refname>udevadm</refname><refpurpose>udev management tool</refpurpose>
|
||
|
|
</refnamediv>
|
||
|
|
|
||
|
|
<refsynopsisdiv>
|
||
|
|
<cmdsynopsis>
|
||
|
|
<command>udevadm info <optional>options</optional></command>
|
||
|
|
</cmdsynopsis>
|
||
|
|
<cmdsynopsis>
|
||
|
|
<command>udevadm trigger <optional>options</optional></command>
|
||
|
|
</cmdsynopsis>
|
||
|
|
<cmdsynopsis>
|
||
|
|
<command>udevadm settle <optional>options</optional></command>
|
||
|
|
</cmdsynopsis>
|
||
|
|
<cmdsynopsis>
|
||
|
|
<command>udevadm control <optional>options</optional> <replaceable>instruction</replaceable></command>
|
||
|
|
</cmdsynopsis>
|
||
|
|
<cmdsynopsis>
|
||
|
|
<command>udevadm monitor <optional>options</optional></command>
|
||
|
|
</cmdsynopsis>
|
||
|
|
<cmdsynopsis>
|
||
|
|
<command>udevadm test <optional>options</optional> <replaceable>devpath</replaceable></command>
|
||
|
|
</cmdsynopsis>
|
||
|
|
<cmdsynopsis>
|
||
|
|
<command>udevadm version</command>
|
||
|
|
</cmdsynopsis>
|
||
|
|
<cmdsynopsis>
|
||
|
|
<command>udevadm help</command>
|
||
|
|
</cmdsynopsis>
|
||
|
|
</refsynopsisdiv>
|
||
|
|
|
||
|
|
<refsect1><title>DESCRIPTION</title>
|
||
|
|
<para>udevadm expects a command and command specific options. It
|
||
|
|
controls the runtime behavior of udev, request kernel events,
|
||
|
|
manages the event queue, and provides simple debugging mechanisms.</para>
|
||
|
|
</refsect1>
|
||
|
|
|
||
|
|
<refsect1><title>OPTIONS</title>
|
||
|
|
|
||
|
|
<refsect2><title>udevadm info</title>
|
||
|
|
<para>Queries the udev database for device information
|
||
|
|
stored in the udev database. It can also query the properties
|
||
|
|
of a device from its sysfs representation to help creating udev
|
||
|
|
rules that match this device.</para>
|
||
|
|
<variablelist>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--query=<replaceable>type</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Query the database for specified type of device data. It needs the
|
||
|
|
<option>--path</option> or <option>--name</option> to identify the specified
|
||
|
|
device. Valid queries are:
|
||
|
|
<command>name</command>, <command>symlink</command>, <command>path</command>,
|
||
|
|
<command>env</command>, <command>all</command>.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--path=<replaceable>devpath</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>The devpath of the device to query.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--name=<replaceable>node</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>The name of the device node or a symlink to query</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--root</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>The udev root directory: <filename>/dev</filename>. If used in conjunction
|
||
|
|
with a <command>name</command> or <command>symlink</command> query, the
|
||
|
|
query returns the absolute path including the root directory.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--attribute-walk</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Print all sysfs properties of the specified device that can be used
|
||
|
|
in udev rules to match the specified device. It prints all devices
|
||
|
|
along the chain, up to the root of sysfs that can be used in udev rules.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--export-db</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Export the content of the udev database.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--version</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Print version.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--help</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Print help text.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
</variablelist>
|
||
|
|
</refsect2>
|
||
|
|
|
||
|
|
<refsect2><title>udevadm trigger</title>
|
||
|
|
<para>Request kernel device uevents, usually used to replay events at system coldplug.</para>
|
||
|
|
<variablelist>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--verbose</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Print the list of devices which will be triggered.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--dry-run</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Do not actually trigger the event.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--retry-failed</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Trigger only the events which are failed during a previous run.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--action=<replaceable>action</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Type of event to be triggered. The default value is "add".</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--subsystem-match=<replaceable>subsystem</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Trigger events for devices which belong to a matching subsystem. This option
|
||
|
|
can be specified multiple times and supports shell style pattern matching.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--subsystem-nomatch=<replaceable>subsystem</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Do not trigger events for devices which belong to a matching subsystem. This option
|
||
|
|
can be specified multiple times and supports shell style pattern matching.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--attr-match=<replaceable>attribute=value</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Trigger events for devices with a matching sysfs attribute. If a value is specified
|
||
|
|
along with the attribute name, the content of the attribute is matched against the given
|
||
|
|
value using shell style pattern matching. If no value is specified, the existence of the
|
||
|
|
sysfs attribute is checked. This option can be specified multiple times.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--attr-nomatch<replaceable>attribute=value</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Do not trigger events for devices with a matching sysfs attribute. If a value is
|
||
|
|
specified along with the attribute name, the content of the attribute is matched against
|
||
|
|
the given value using shell style pattern matching. If no value is specified, the existence
|
||
|
|
of the sysfs attribute is checked. This option can be specified multiple times.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
</variablelist>
|
||
|
|
</refsect2>
|
||
|
|
|
||
|
|
<refsect2><title>udevadm settle</title>
|
||
|
|
<para>Watches the udev event queue, and exits if all current events are handled.</para>
|
||
|
|
<variablelist>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--timeout=<replaceable>seconds</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Maximum seconds to wait for the queue to become empty.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--help</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Print help text.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
</variablelist>
|
||
|
|
</refsect2>
|
||
|
|
|
||
|
|
<refsect2><title>udevadm control <replaceable>instruction</replaceable></title>
|
||
|
|
<para>Modify the internal state of the running udev daemon.</para>
|
||
|
|
<variablelist>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>log_priority=<replaceable>value</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Set the internal 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>Signal udevd to stop executing new events. Incoming events
|
||
|
|
will be queued.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>start_exec_queue</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Signal udevd to enable the execution of events.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>reload_rules</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Signal udevd to reload the rules from the config.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>env <replaceable>var</replaceable>=<replaceable>value</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Set global variable.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>max_childs</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Set the maximum number of events, udevd will handle at the
|
||
|
|
same time.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>max_childs_running</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Set the maximum number of events, which are allowed to run at the
|
||
|
|
same time.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>help</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Print help text.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
</variablelist>
|
||
|
|
</refsect2>
|
||
|
|
|
||
|
|
<refsect2><title>udevadm monitor</title>
|
||
|
|
<para>Listens to the kernel uevents and events sent out by a udev rule
|
||
|
|
and prints the devpath of the event to the console. It can be used to analyze the
|
||
|
|
event timing, by comparing the timestamps of the kernel uevent and the udev event.
|
||
|
|
</para>
|
||
|
|
<variablelist>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--environment</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Print the complete environment for all events. Can be used to compare the
|
||
|
|
kernel supplied and the udev added environment values.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--kernel</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Print the kernel uevents.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--udev</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Print the udev event after the rule processing.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--help</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Print help text.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
</variablelist>
|
||
|
|
</refsect2>
|
||
|
|
|
||
|
|
<refsect2><title>udevadm test</title>
|
||
|
|
<para>Simulate a udev event run for the given device, and print out debug
|
||
|
|
output. Unless forced to, no device node or symlink will be created.</para>
|
||
|
|
<variablelist>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--action=<replaceable>string</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>The action string.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--subsystem=<replaceable>string</replaceable></option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>The subsystem string.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--force</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Force the creation of a device node or symlink. Usually the test run
|
||
|
|
prints only debug output.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
<varlistentry>
|
||
|
|
<term><option>--help</option></term>
|
||
|
|
<listitem>
|
||
|
|
<para>Print help text.</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
</variablelist>
|
||
|
|
</refsect2>
|
||
|
|
|
||
|
|
<refsect2><title>udevadm version</title>
|
||
|
|
<para>Print version number.</para>
|
||
|
|
</refsect2>
|
||
|
|
|
||
|
|
<refsect2><title>udevadm help</title>
|
||
|
|
<para>Print help text.</para>
|
||
|
|
</refsect2>
|
||
|
|
</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>
|
||
|
|
<citerefentry>
|
||
|
|
<refentrytitle>udevd</refentrytitle><manvolnum>8</manvolnum>
|
||
|
|
</citerefentry></para>
|
||
|
|
</refsect1>
|
||
|
|
</refentry>
|
||
|
|
</section>
|
||
|
|
</article>
|