mirror of
https://github.com/systemd/systemd.git
synced 2024-11-26 19:53:45 +08:00
120 lines
4.6 KiB
XML
120 lines
4.6 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
|
|
<!ENTITY % entities SYSTEM "custom-entities.ent" >
|
|
%entities;
|
|
]>
|
|
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
|
|
|
|
<refentry id="udev_monitor_receive_device"
|
|
xmlns:xi="http://www.w3.org/2001/XInclude">
|
|
|
|
<refentryinfo>
|
|
<title>udev_monitor_receive_device</title>
|
|
<productname>systemd</productname>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>udev_monitor_receive_device</refentrytitle>
|
|
<manvolnum>3</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>udev_monitor_receive_device</refname>
|
|
<refname>udev_monitor_enable_receiving</refname>
|
|
<refname>udev_monitor_set_receive_buffer_size</refname>
|
|
<refname>udev_monitor_get_fd</refname>
|
|
<refname>udev_monitor_get_udev</refname>
|
|
|
|
<refpurpose>Query and modify device monitor</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<funcsynopsis>
|
|
<funcsynopsisinfo>#include <libudev.h></funcsynopsisinfo>
|
|
|
|
<funcprototype>
|
|
<funcdef>struct udev_device *<function>udev_monitor_receive_device</function></funcdef>
|
|
<paramdef>struct udev_monitor *<parameter>udev_monitor</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>int <function>udev_monitor_enable_receiving</function></funcdef>
|
|
<paramdef>struct udev_monitor *<parameter>udev_monitor</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>int <function>udev_monitor_set_receive_buffer_size</function></funcdef>
|
|
<paramdef>struct udev_monitor *<parameter>udev_monitor</parameter></paramdef>
|
|
<paramdef>int <parameter>size</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>int <function>udev_monitor_get_fd</function></funcdef>
|
|
<paramdef>struct udev_monitor *<parameter>udev_monitor</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>struct udev *<function>udev_monitor_get_udev</function></funcdef>
|
|
<paramdef>struct udev_monitor *<parameter>udev_monitor</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
</funcsynopsis>
|
|
</refsynopsisdiv>
|
|
|
|
<!--<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para>XXX: Add short description.</para>
|
|
</refsect1>-->
|
|
|
|
<refsect1>
|
|
<title>Return Value</title>
|
|
|
|
<para>On success,
|
|
<function>udev_monitor_receive_device()</function> returns a
|
|
pointer to a newly referenced device that was received via the
|
|
monitor. The caller is responsible to drop this reference when
|
|
done. On failure, <constant>NULL</constant> is returned.</para>
|
|
|
|
<para>On success,
|
|
<function>udev_monitor_enable_receiving()</function> and
|
|
<function>udev_monitor_set_receive_buffer_size()</function>
|
|
return an integer greater than, or equal to,
|
|
<constant>0</constant>. On failure, a negative error code is
|
|
returned.</para>
|
|
|
|
<para>On success, <function>udev_monitor_get_fd()</function>
|
|
returns the file descriptor used by this monitor. On failure,
|
|
a negative error code is returned.</para>
|
|
|
|
<para><function>udev_monitor_get_udev()</function> always returns
|
|
a pointer to the udev context that this monitor is associated
|
|
with.</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>History</title>
|
|
<para><function>udev_monitor_receive_device()</function>,
|
|
<function>udev_monitor_enable_receiving()</function>,
|
|
<function>udev_monitor_set_receive_buffer_size()</function>,
|
|
<function>udev_monitor_get_fd()</function>, and
|
|
<function>udev_monitor_get_udev()</function> were added in version 221.</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
|
|
<para><simplelist type="inline">
|
|
<member><citerefentry><refentrytitle>udev_new</refentrytitle><manvolnum>3</manvolnum></citerefentry></member>
|
|
<member><citerefentry><refentrytitle>udev_device_new_from_syspath</refentrytitle><manvolnum>3</manvolnum></citerefentry></member>
|
|
<member><citerefentry><refentrytitle>udev_enumerate_new</refentrytitle><manvolnum>3</manvolnum></citerefentry></member>
|
|
<member><citerefentry><refentrytitle>udev_monitor_new_from_netlink</refentrytitle><manvolnum>3</manvolnum></citerefentry></member>
|
|
<member><citerefentry><refentrytitle>udev_monitor_filter_update</refentrytitle><manvolnum>3</manvolnum></citerefentry></member>
|
|
<member><citerefentry><refentrytitle>udev_list_entry</refentrytitle><manvolnum>3</manvolnum></citerefentry></member>
|
|
<member><citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
|
|
</simplelist></para>
|
|
</refsect1>
|
|
|
|
</refentry>
|