mirror of
https://github.com/systemd/systemd.git
synced 2024-12-23 21:35:11 +03:00
208 lines
8.3 KiB
XML
208 lines
8.3 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
|
|
<!ENTITY % entities SYSTEM "custom-entities.ent" >
|
|
%entities;
|
|
]>
|
|
|
|
<!--
|
|
This file is part of systemd.
|
|
|
|
Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
|
|
|
|
systemd is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
systemd is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
-->
|
|
|
|
<refentry id="udev_device_get_syspath"
|
|
xmlns:xi="http://www.w3.org/2001/XInclude">
|
|
|
|
<refentryinfo>
|
|
<title>udev_device_get_syspath</title>
|
|
<productname>systemd</productname>
|
|
|
|
<authorgroup>
|
|
<author>
|
|
<contrib>Developer</contrib>
|
|
<firstname>David</firstname>
|
|
<surname>Herrmann</surname>
|
|
<email>dh.herrmann@gmail.com</email>
|
|
</author>
|
|
</authorgroup>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>udev_device_get_syspath</refentrytitle>
|
|
<manvolnum>3</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>udev_device_get_syspath</refname>
|
|
<refname>udev_device_get_sysname</refname>
|
|
<refname>udev_device_get_sysnum</refname>
|
|
<refname>udev_device_get_devpath</refname>
|
|
<refname>udev_device_get_devnode</refname>
|
|
<refname>udev_device_get_devnum</refname>
|
|
<refname>udev_device_get_devtype</refname>
|
|
<refname>udev_device_get_subsystem</refname>
|
|
<refname>udev_device_get_driver</refname>
|
|
<refname>udev_device_get_udev</refname>
|
|
<refname>udev_device_get_parent</refname>
|
|
<refname>udev_device_get_parent_with_subsystem_devtype</refname>
|
|
<refname>udev_device_get_is_initialized</refname>
|
|
<refname>udev_device_get_action</refname>
|
|
|
|
<refpurpose>Query device properties</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<funcsynopsis>
|
|
<funcsynopsisinfo>#include <libudev.h></funcsynopsisinfo>
|
|
|
|
<funcprototype>
|
|
<funcdef>const char *<function>udev_device_get_syspath</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>const char *<function>udev_device_get_sysname</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>const char *<function>udev_device_get_sysnum</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>const char *<function>udev_device_get_devpath</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>const char *<function>udev_device_get_devnode</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>dev_t <function>udev_device_get_devnum</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>const char *<function>udev_device_get_devtype</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>const char *<function>udev_device_get_subsystem</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>const char *<function>udev_device_get_driver</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>struct udev *<function>udev_device_get_udev</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>struct udev_device *<function>udev_device_get_parent</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>struct udev_device *<function>udev_device_get_parent_with_subsystem_devtype</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
<paramdef>const char *<parameter>subsystem</parameter></paramdef>
|
|
<paramdef>const char *<parameter>devtype</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>int <function>udev_device_get_is_initialized</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
<funcprototype>
|
|
<funcdef>const char *<function>udev_device_get_action</function></funcdef>
|
|
<paramdef>struct udev_device *<parameter>udev_device</parameter></paramdef>
|
|
</funcprototype>
|
|
|
|
</funcsynopsis>
|
|
</refsynopsisdiv>
|
|
|
|
<!--<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para>XXX: Add documentation.</para>
|
|
</refsect1>-->
|
|
|
|
<refsect1>
|
|
<title>Return Value</title>
|
|
|
|
<para>On success, <function>udev_device_get_syspath()</function>,
|
|
<function>udev_device_get_sysname()</function>,
|
|
<function>udev_device_get_sysnum()</function>,
|
|
<function>udev_device_get_devpath()</function>,
|
|
<function>udev_device_get_devnode()</function>,
|
|
<function>udev_device_get_devtype()</function>,
|
|
<function>udev_device_get_subsystem()</function>,
|
|
<function>udev_device_get_driver()</function> and
|
|
<function>udev_device_get_action()</function> return a pointer
|
|
to a constant string that describes the requested property. The
|
|
lifetime of this string is bound to the device it was requested
|
|
on. On failure, each function may return
|
|
<constant>NULL</constant>.</para>
|
|
|
|
<para>On success, <function>udev_device_get_devnum()</function>
|
|
returns the device type of the passed device. On failure, a
|
|
device type with minor and major number set to
|
|
<constant>0</constant> is returned.</para>
|
|
|
|
<para><function>udev_device_get_udev()</function> always returns
|
|
a valid pointer to the udev context that this device belongs
|
|
to.</para>
|
|
|
|
<para>On success, <function>udev_device_get_parent()</function>
|
|
and
|
|
<function>udev_device_get_parent_with_subsystem_devtype()</function>
|
|
return a pointer to the parent device. No additional reference
|
|
to this device is acquired, but the child device owns a reference
|
|
to such a parent device. On failure, <constant>NULL</constant>
|
|
is returned.</para>
|
|
|
|
<para>On success, <function>udev_device_get_is_initialized()</function> returns either <constant>1</constant> or
|
|
<constant>0</constant>, depending on whether the passed device has already been initialized by udev or not. On
|
|
failure, a negative error code is returned. Note that devices for which no udev rules are defined are never
|
|
reported initialized.</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
|
|
<para>
|
|
<citerefentry><refentrytitle>udev_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>udev_device_new_from_syspath</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>udev_device_has_tag</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>udev_enumerate_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>udev_monitor_new_from_netlink</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>udev_list_entry</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|