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man: add static device nodes and udevd debug options

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This commit is contained in:
Kay Sievers 2010-05-28 15:11:36 +02:00
parent e5e3f0ca64
commit 9fa68615bb
2 changed files with 36 additions and 14 deletions
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10
udev/udev.xml
View File

@ -489,6 +489,16 @@
with this option.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>static_node=</option></term>
<listitem>
<para>Apply the permissions specified in this rule to a static device node with
the specified name. Static device nodes might be provided by kernel modules,
or copied from <filename>/lib/udev/devices</filename>. These nodes might not have
a corresponding kernel device at the time udevd is started, and allow to trigger
automatic kernel module on-demand loading.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>watch</option></term>
<listitem>

40
udev/udevd.xml
View File

@ -23,19 +23,23 @@
<cmdsynopsis>
<command>udevd</command>
<arg><option>--daemon</option></arg>
<arg><option>--children-max</option></arg>
<arg><option>--debug</option></arg>
<arg><option>--version</option></arg>
<arg><option>--children-max=</option></arg>
<arg><option>--exec-delay=</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>udevd listens to kernel uevents and passes the incoming events to
udev. It ensures the correct event order and takes care, that events for child
devices are delayed until the parent event has finished the device handling.
The behavior of the running daemon can be changed with
<para>udevd listens to kernel uevents and executes the instructions specified
in rules. On startup the content of the directory
<filename>/lib/udev/devices</filename> is copied to <filename>/dev</filename>.
If kernel modules specify static device nodes, these nodes are created
even wihtout a corresponding kernel device, to allow on-demand loading of kernel
modules. Matching permissions specified in udev rules are applied to these
static device nodes. The behavior of the running daemon can be changed with
<command>udevadm control</command>.</para>
</refsect1>
@ -47,13 +51,6 @@
<para>Detach and run in the background.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--children-max</option></term>
<listitem>
<para>Limit the number of parallel executed events.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--debug</option></term>
<listitem>
@ -61,7 +58,22 @@
</listitem>
</varlistentry>
<varlistentry>
<term><option>--resolve-names</option></term>
<term><option>--children-max=</option></term>
<listitem>
<para>Limit the number of parallel executed events.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--exec-delay=</option></term>
<listitem>
<para>Number of seconds to delay the execution of RUN instructions.
This might be useful when debugging system crashes during coldplug
cause by loading non-working kernel modules.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--resolve-names=</option></term>
<listitem>
<para>Specify when udevd should resolve names of users and groups.
When set to <option>early</option> (the default) names will be