| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 | <!ENTITY hal-download-http "http://freedesktop.org/~david/dist/hal-&hal-version;.tar.gz">
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| 8 | <!ENTITY hal-download-ftp "ftp://ftp.fu-berlin.de/unix/linux/mirrors/gentoo/distfiles/hal-&hal-version;.tar.gz">
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| 9 | <!ENTITY hal-md5sum "d7a7741808ba130f8aff3f5d3b5689e4">
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| 10 | <!ENTITY hal-size "1.5 MB">
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| 11 | <!ENTITY hal-buildsize "19.0 MB">
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| 12 | <!ENTITY hal-time "0.5 SBU">
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| 13 | ]>
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| 14 |
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| 15 | <sect1 id="hal" xreflabel="HAL-&hal-version;">
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| 16 | <?dbhtml filename="hal.html"?>
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| 17 |
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| 18 | <sect1info>
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| 19 | <othername>$LastChangedBy$</othername>
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| 20 | <date>$Date$</date>
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| 21 | </sect1info>
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| 22 |
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| 23 | <title>HAL-&hal-version;</title>
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| 24 |
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| 25 | <indexterm zone="hal">
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| 26 | <primary sortas="a-HAL">HAL</primary>
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| 27 | </indexterm>
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| 28 |
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| 29 | <sect2 role="package">
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| 30 | <title>Introduction to HAL</title>
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| 31 |
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| 32 | <para><application>HAL</application> is a hardware abstraction layer, which
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| 33 | is a piece of software that provides a view of the various hardware
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| 34 | attached to a system. In addition to this, <application>HAL</application>
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| 35 | keeps detailed metadata for each piece of hardware and provides hooks such
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| 36 | that system and desktop-level software can react to changes in the hardware
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| 37 | configuration in order to maintain system policy.</para>
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| 38 |
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| 39 | <para>The most important goal of <application>HAL</application> is to
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| 40 | provide plug-and-play facilities for UNIX-like desktops with focus on
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| 41 | providing a rich and extensible description of device characteristics and
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| 42 | features. One example of the functionality provided by
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| 43 | <application>HAL</application> is when you plug in a USB storage device.
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| 44 | <application>HAL</application> can automatically create a mount point in
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| 45 | <filename class="directory">/media</filename> and mount the device.</para>
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| 46 |
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| 47 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 48 | <itemizedlist spacing="compact">
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| 49 | <listitem>
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| 50 | <para>Download (HTTP): <ulink url="&hal-download-http;"/></para>
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| 51 | </listitem>
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| 52 | <listitem>
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| 53 | <para>Download (FTP): <ulink url="&hal-download-ftp;"/></para>
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| 54 | </listitem>
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| 55 | <listitem>
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| 56 | <para>Download MD5 sum: &hal-md5sum;</para>
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| 57 | </listitem>
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| 58 | <listitem>
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| 59 | <para>Download size: &hal-size;</para>
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| 60 | </listitem>
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| 61 | <listitem>
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| 62 | <para>Estimated disk space required: &hal-buildsize;</para>
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| 63 | </listitem>
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| 64 | <listitem>
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| 65 | <para>Estimated build time: &hal-time;</para>
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| 66 | </listitem>
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| 67 | </itemizedlist>
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| 68 |
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| 69 | <bridgehead renderas="sect3">HAL Dependencies</bridgehead>
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| 70 |
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| 71 | <bridgehead renderas="sect4">Required</bridgehead>
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| 72 | <para role="required"><xref linkend="glib2"/>,
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| 73 | <xref linkend="dbus"/> (see the <xref linkend="hal-requirements"/>),
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| 74 | <xref linkend="python"/>, and
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| 75 | <xref linkend="perl-xml-parser"/></para>
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| 76 |
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| 77 | <bridgehead renderas="sect4">Recommended</bridgehead>
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| 78 | <para role="recommended"><xref linkend="pciutils"/>
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| 79 | (with a current <filename>pci.ids</filename> file) and
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| 80 | <xref linkend="usbutils"/>
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| 81 | (with a current <filename>usb.ids</filename> file)</para>
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| 82 |
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| 83 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 84 | <para role="optional"><xref linkend="pkgconfig"/>,
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| 85 | <xref linkend="intltool"/>,
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| 86 | <xref linkend="libusb"/>,
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| 87 | <xref linkend="doxygen"/>, and
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| 88 | <xref linkend="docbook-utils"/></para>
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| 89 |
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| 90 | <para condition="html" role="usernotes">User Notes:
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| 91 | <ulink url="&blfs-wiki;/hal"/></para>
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| 92 |
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| 93 | </sect2>
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| 94 |
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| 95 | <sect2 role="installation">
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| 96 | <title>Installation of HAL</title>
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| 97 |
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| 98 | <para>You must create a dedicated user and group before installing the
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| 99 | package. Though the default BLFS instructions run the
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| 100 | <application>HAL</application> daemon as the
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| 101 | <systemitem class="username">root</systemitem> user, a configuration file
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| 102 | is installed which has the dedicated user's name hard-coded in it. This
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| 103 | causes a confusing message to be generated when starting the
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| 104 | <application>D-BUS</application> daemon. Issue the following commands as
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| 105 | the <systemitem class="username">root</systemitem> user:</para>
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| 106 |
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| 107 | <screen role="root"><userinput>groupadd -g 19 haldaemon &&
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| 108 | useradd -c "HAL Daemon User" -d /dev/null -u 19 \
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| 109 | -g haldaemon -s /bin/false haldaemon</userinput></screen>
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| 110 |
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| 111 | <para>Install <application>HAL</application> by running the following
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| 112 | commands:</para>
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| 113 |
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| 114 | <screen><userinput>./configure --prefix=/usr \
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| 115 | --sysconfdir=/etc \
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| 116 | --libexecdir=/usr/lib/hal \
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| 117 | --localstatedir=/var &&
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| 118 | make</userinput></screen>
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| 119 |
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| 120 | <para>To test the results, issue <command>make check</command>.</para>
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| 121 |
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| 122 | <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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| 123 |
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| 124 | <screen role="root"><userinput>make install &&
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| 125 | install -v -m755 -d /var/run/hald</userinput></screen>
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| 126 |
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| 127 | </sect2>
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| 128 |
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| 129 | <sect2 role="commands">
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| 130 | <title>Command Explanations</title>
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| 131 |
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| 132 | <para><parameter>--libexecdir=/usr/lib/hal</parameter>: This parameter
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| 133 | forces the installation of libexec files to
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| 134 | <filename class='directory'>/usr/lib/hal</filename> instead of
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| 135 | <filename class='directory'>/usr/libexec</filename>.</para>
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| 136 |
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| 137 | <para><parameter>--localstatedir=/var</parameter>: This parameter forces
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| 138 | the creation of the <filename>pid</filename> file to
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| 139 | <filename class='directory'>/var/run/hald</filename> instead of
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| 140 | <filename class='directory'>/usr/var/run/hald</filename>.</para>
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| 141 |
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| 142 | </sect2>
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| 143 |
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| 144 | <sect2 id="hal-runtime-dependencies" xreflabel="GNOME-Python">
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| 145 | <title>Run-Time Dependencies</title>
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| 146 |
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| 147 | <para>The <xref linkend="hal-device-manager"/> program requires several
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| 148 | additional packages to be installed before it will run. The list is
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| 149 | significant and requires a substantial commitment to install them. It is
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| 150 | left up to you to determine if the time and effort spent installing the
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| 151 | following packages is worth using the <command>hal-device-manager</command>
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| 152 | program.</para>
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| 153 |
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| 154 | <para>Though the only requirement to run the
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| 155 | <command>hal-device-manager</command> program is installing
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| 156 | <ulink url="&gnome-download-http;/gnome-python/">
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| 157 | GNOME-Python</ulink>, the dependency list is staggering. The following
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| 158 | list does not include the dependencies already identified in the BLFS
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| 159 | book. For example, <application>libgnome</application> already lists
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| 160 | <application>GNOME VFS</application>, <application>GConf</application>,
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| 161 | etc., so they are not repeated here. Note that some of the dependencies
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| 162 | have their own dependencies, which have their own, and so forth and so
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| 163 | on.</para>
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| 164 |
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| 165 | <itemizedlist>
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| 166 | <listitem>
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| 167 | <para><ulink
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| 168 | url="&gnome-download-http;/gnome-python/">GNOME-Python</ulink>
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| 169 | </para>
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| 170 |
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| 171 | <itemizedlist>
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| 172 | <listitem>
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| 173 | <para><ulink
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| 174 | url="http://www.pygtk.org/">PyGTK</ulink> (required)
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| 175 | </para>
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| 176 |
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| 177 | <itemizedlist>
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| 178 | <listitem>
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| 179 | <para><ulink
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| 180 | url="http://www.cairographics.org/pycairo">Pycairo</ulink> (optional)
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| 181 | </para>
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| 182 |
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| 183 | <itemizedlist>
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| 184 | <listitem>
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| 185 | <para><ulink
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| 186 | url="http://www.cairographics.org/snapshots/">libsvg-cairo</ulink> (optional)
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| 187 | </para>
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| 188 |
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| 189 | <itemizedlist>
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| 190 | <listitem>
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| 191 | <para><ulink
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| 192 | url="http://www.cairographics.org/snapshots/">libsvg</ulink> (required)
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| 193 | </para>
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| 194 | </listitem>
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| 195 | </itemizedlist>
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| 196 |
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| 197 | </listitem>
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| 198 | <listitem>
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| 199 | <para><ulink
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| 200 | url="http://www.pygtk.org/">PyGTK</ulink> (optional, and circular)
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| 201 | </para>
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| 202 | </listitem>
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| 203 | <listitem>
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| 204 | <para><ulink
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| 205 | url="http://sourceforge.net/projects/numpy">Numerical Python</ulink> (optional)
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| 206 | </para>
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| 207 | </listitem>
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| 208 | </itemizedlist>
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| 209 |
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| 210 | </listitem>
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| 211 | <listitem>
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| 212 | <para><ulink
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| 213 | url="http://sourceforge.net/projects/numpy">Numerical Python</ulink> (optional)
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| 214 | </para>
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| 215 | </listitem>
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| 216 | <listitem>
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| 217 | <para><xref linkend="libglade"/> (required)</para>
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| 218 | </listitem>
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| 219 | </itemizedlist>
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| 220 |
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| 221 | </listitem>
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| 222 | <listitem>
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| 223 | <para><xref linkend="libgnomeui"/> (optional)</para>
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| 224 | </listitem>
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| 225 | <listitem>
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| 226 | <para><xref linkend="libgnome"/> (required)</para>
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| 227 | </listitem>
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| 228 | <listitem>
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| 229 | <para><ulink
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| 230 | url="&gnome-download-http;/pyorbit/">PyORBit</ulink> (optional)
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| 231 | </para>
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| 232 |
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| 233 | <itemizedlist>
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| 234 | <listitem>
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| 235 | <para><xref linkend="ORBit2"/> (required)</para>
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| 236 | </listitem>
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| 237 | </itemizedlist>
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| 238 |
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| 239 | </listitem>
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| 240 | </itemizedlist>
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| 241 |
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| 242 | </listitem>
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| 243 | </itemizedlist>
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| 244 |
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| 245 | <note>
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| 246 | <para>The dependency list is designed to start at the bottom and work
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| 247 | your way up until the last package to install is
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| 248 | <application>GNOME-Python</application>. Note that the dependencies
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| 249 | marked as <quote>required</quote> are required for the package it is
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| 250 | listed under. For example, you don't need to install
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| 251 | <application>ORBit</application> if you don't plan on installing
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| 252 | <application>PyORBit</application>. The minimum packages you could
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| 253 | install to support running <xref linkend="hal-device-manager"/> would be
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| 254 | (in this order): <xref linkend="libgnome"/>, <xref linkend="libglade"/>,
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| 255 | <ulink url="http://www.pygtk.org/">PyGTK</ulink> and <ulink
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| 256 | url="&gnome-download-http;/gnome-python/">
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| 257 | GNOME-Python</ulink>.</para>
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| 258 | </note>
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| 259 |
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| 260 | </sect2>
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| 261 |
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| 262 | <sect2 role="configuration">
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| 263 | <title>Configuring HAL</title>
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| 264 |
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| 265 | <sect3 id="hal-config">
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| 266 | <title>Config Files</title>
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| 267 | <para><filename>/etc/dbus-1/system.d/hal.conf</filename>,
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| 268 | <filename>/etc/dbus-1/system.d/halusers.conf</filename> and
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| 269 | <filename>/etc/hal/*</filename></para>
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| 270 |
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| 271 | <indexterm zone="hal hal-config">
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| 272 | <primary sortas="e-etc-dbus-1-system.d-hal.conf">/etc/dbus-1/system.d/hal.conf</primary>
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| 273 | </indexterm>
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| 274 |
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| 275 | <indexterm zone="hal hal-config">
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| 276 | <primary sortas="e-etc-dbus-1-system.d-halusers.conf">/etc/dbus-1/system.d/halusers.conf</primary>
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| 277 | </indexterm>
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| 278 |
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| 279 | <indexterm zone="hal hal-config">
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| 280 | <primary sortas="e-etc-hal-star">/etc/hal/*</primary>
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| 281 | </indexterm>
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| 282 | </sect3>
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| 283 |
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| 284 | <sect3><title>Configuration Information</title>
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| 285 |
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| 286 | <para>The default setup for <application>HAL</application> is to allow
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| 287 | only certain users to invoke methods such as Mount(). These are
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| 288 | the <systemitem class="username">root</systemitem> user and the user
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| 289 | determined to be at the active console using <ulink
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| 290 | url="&blfs-wiki;/linux-pam">pam_console</ulink>. If you are not set
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| 291 | up to use <xref linkend="linux-pam"/> and <ulink
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| 292 | url="&blfs-wiki;/linux-pam">pam_console</ulink>, create a group that
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| 293 | is allowed to invoke <application>HAL</application> methods with the
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| 294 | following commands:</para>
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| 295 |
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| 296 | <screen role="root"><userinput>groupadd -g 61 halusers &&
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| 297 | cat > /etc/dbus-1/system.d/halusers.conf << "EOF"
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| 298 | <literal><!DOCTYPE busconfig PUBLIC
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| 299 | "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
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| 300 | "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
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| 301 | <busconfig>
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| 302 |
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| 303 | <!-- Allow users in the halusers group invoke HAL methods -->
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| 304 | <policy group="halusers">
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| 305 | <allow send_interface="org.freedesktop.Hal.Device.SystemPowerManagement"/>
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| 306 | <allow send_interface="org.freedesktop.Hal.Device.LaptopPanel"/>
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| 307 | <allow send_interface="org.freedesktop.Hal.Device.Volume"/>
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| 308 | <allow send_interface="org.freedesktop.Hal.Device.Volume.Crypto"/>
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| 309 | </policy>
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| 310 |
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| 311 | </busconfig></literal>
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| 312 | EOF</userinput></screen>
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| 313 |
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| 314 | <para>Now add the users you would like to the <systemitem
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| 315 | class="groupname">halusers</systemitem> group to use
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| 316 | <application>HAL</application>. Note that these users still need
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| 317 | to have appropriate permissions to access the devices that
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| 318 | <application>HAL</application> will invoke its methods on.</para>
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| 319 |
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| 320 | <para><application>HAL</application> only provides the methods such
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| 321 | as Mount() to act on hardware. In order to take advantage of these,
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| 322 | a <application>HAL</application> event handler such as
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| 323 | <xref linkend="gnome-volume-manager"/> or <ulink
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| 324 | url="http://ivman.sourceforge.net/">Ivman</ulink> should be
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| 325 | installed.</para>
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| 326 |
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| 327 | <!-- Following note is only relevant for HAL-0.5.7.x.
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| 328 | Fixed upstream. -->
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| 329 | <note>
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| 330 | <para><application>HAL</application> will ignore any devices listed
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| 331 | in <filename>/etc/fstab</filename> for the purpose of automounting.
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| 332 | You must remove any listings for devices that you would like
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| 333 | automounted such as CD-ROMs or USB keys.</para>
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| 334 | </note>
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| 335 |
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| 336 | <!-- This section commented out for now until it is determined what should
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| 337 | be placed in this section
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| 338 |
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| 339 | FIXME: I think this information is still relevant with the
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| 340 | exception of its interaction with /etc/fstab. Needs investigation.
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| 341 |
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| 342 | <para>No configuration is necessary for the majority of installations
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| 343 | on systems configured with ISO-8859-1 compatible locales. The defaults
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| 344 | should work just fine. For some installations, tweaking of the various
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| 345 | policies may be required. One such configuration change necessary in some
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| 346 | locales is identifying the <option>iocharset</option> and
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| 347 | <option>codepage</option> variables in the
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| 348 | <filename>/etc/fstab</filename> entries created by the
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| 349 | <command>fstab-sync</command> program. If changes are required to the
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| 350 | configuration so that your locale is properly identified in the entries
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| 351 | created in <filename>/etc/fstab</filename>, issue the following commands
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| 352 | as the <systemitem class="username">root</systemitem> user (you must
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| 353 | substitute the proper data for the
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| 354 | <replaceable><iocharset></replaceable> and
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| 355 | <replaceable><codepage></replaceable> info):</para>
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| 356 |
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| 357 | <screen role="root"><userinput>install -v -m755 -d /etc/hal/fdi/policy/30user &&
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| 358 | cat > /etc/hal/fdi/policy/30user/30user-policy.fdi << "EOF"
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| 359 | <literal><?xml version="1.0" encoding="UTF-8"?> <!- -*- SGML -*- ->
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| 360 |
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| 361 | <!-
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| 362 | This file is used to set custom options to the HAL policy settings.
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| 363 | The default policy settings are defined in files contained in the
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| 364 | /usr/share/hal/fdi/policy directories. User defined customizations
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| 365 | should be in files contained in the /etc/hal/fdi/policy directories.
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| 366 | ->
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| 367 |
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| 368 | <deviceinfo version="0.2">
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| 369 |
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| 370 | <device>
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| 371 | <match key="info.udi"
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| 372 | string="/org/freedesktop/Hal/devices/computer">
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| 373 |
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| 374 | <!- Set the iocharset variable in the /etc/fstab file entry ->
|
|---|
| 375 | <merge
|
|---|
| 376 | key="storage.policy.default.mount_option.iocharset=<replaceable><iocharset></replaceable>"
|
|---|
| 377 | type="bool">true</merge>
|
|---|
| 378 |
|
|---|
| 379 | <!- Set the codepage variable in the /etc/fstab file entry ->
|
|---|
| 380 | <merge
|
|---|
| 381 | key="storage.policy.default.mount_option.codepage=<replaceable><codepage></replaceable>"
|
|---|
| 382 | type="bool">true</merge>
|
|---|
| 383 |
|
|---|
| 384 | </match>
|
|---|
| 385 | </device>
|
|---|
| 386 |
|
|---|
| 387 | </deviceinfo></literal>
|
|---|
| 388 |
|
|---|
| 389 | EOF</userinput></screen>
|
|---|
| 390 |
|
|---|
| 391 | <note>
|
|---|
| 392 | <para>The previous commands created a file named
|
|---|
| 393 | <filename>/etc/hal/fdi/policy/30user/30user-policy.fdi</filename>. To
|
|---|
| 394 | ease readability of the file, put everything between the
|
|---|
| 395 | <angle brackets> and <merge></merge> tags on one
|
|---|
| 396 | line. You must have at least one space character
|
|---|
| 397 | where the ends of the lines were. The file would then look like this
|
|---|
| 398 | (trimmed at the top and bottom for brevity):</para>
|
|---|
| 399 |
|
|---|
| 400 | <screen><literal> <device>
|
|---|
| 401 | <match key="<replaceable><text></replaceable>" string="<replaceable><text></replaceable>">
|
|---|
| 402 |
|
|---|
| 403 | <!- Set the iocharset variable in the /etc/fstab file entry ->
|
|---|
| 404 | <merge key="<replaceable><iocharset text></replaceable>" type="bool">true</merge>
|
|---|
| 405 |
|
|---|
| 406 | <!- Set the codepage variable in the /etc/fstab file entry ->
|
|---|
| 407 | <merge key="<replaceable><codepage text></replaceable>" type="bool">true</merge>
|
|---|
| 408 |
|
|---|
| 409 | </match>
|
|---|
| 410 | </device></literal></screen>
|
|---|
| 411 |
|
|---|
| 412 | </note>
|
|---|
| 413 |
|
|---|
| 414 | -->
|
|---|
| 415 |
|
|---|
| 416 | </sect3>
|
|---|
| 417 |
|
|---|
| 418 | <sect3 id="hal-init">
|
|---|
| 419 | <title>Boot Script</title>
|
|---|
| 420 |
|
|---|
| 421 | <para>To automatically start the <command>hald</command> daemon
|
|---|
| 422 | when the system is rebooted, install the
|
|---|
| 423 | <filename>/etc/rc.d/init.d/haldaemon</filename>
|
|---|
| 424 | bootscript from the
|
|---|
| 425 | <xref linkend="bootscripts"/> package.</para>
|
|---|
| 426 |
|
|---|
| 427 | <indexterm zone="hal hal-init">
|
|---|
| 428 | <primary sortas="f-haldaemon">haldaemon</primary>
|
|---|
| 429 | </indexterm>
|
|---|
| 430 |
|
|---|
| 431 | <!-- Not sure if this is still required any longer as the HAL daemon
|
|---|
| 432 | used to hang if you didn't first restart the DBUS daemon. This is
|
|---|
| 433 | not the case any longer, but it still seems that D-Bus should be
|
|---|
| 434 | restarted, as the hald.conf file is read by the D-BUS daemon.
|
|---|
| 435 | Leaving it in for now until it is positively confirmed it is not
|
|---|
| 436 | required. -->
|
|---|
| 437 |
|
|---|
| 438 | <important>
|
|---|
| 439 | <para>If the system-wide <application>D-BUS</application> daemon was
|
|---|
| 440 | running during the installation of <application>HAL</application>,
|
|---|
| 441 | ensure you stop and restart the <application>D-BUS</application>
|
|---|
| 442 | daemon before attempting to start the <command>hald</command>
|
|---|
| 443 | daemon.</para>
|
|---|
| 444 | </important>
|
|---|
| 445 |
|
|---|
| 446 | <screen role="root"><userinput>make install-haldaemon</userinput></screen>
|
|---|
| 447 |
|
|---|
| 448 | </sect3>
|
|---|
| 449 |
|
|---|
| 450 | </sect2>
|
|---|
| 451 |
|
|---|
| 452 | <sect2 role="content">
|
|---|
| 453 | <title>Contents</title>
|
|---|
| 454 |
|
|---|
| 455 | <segmentedlist>
|
|---|
| 456 | <segtitle>Installed Programs</segtitle>
|
|---|
| 457 | <segtitle>Installed Libraries</segtitle>
|
|---|
| 458 | <segtitle>Installed Directories</segtitle>
|
|---|
| 459 |
|
|---|
| 460 | <seglistitem>
|
|---|
| 461 | <seg>hal-device, hal-device-manager,
|
|---|
| 462 | hal-find-by-capability, hal-find-by-property, hal-get-property,
|
|---|
| 463 | hal-set-property, hald and lshal</seg>
|
|---|
| 464 | <seg>libhal.{so,a} and libhal-storage,{so,a}</seg>
|
|---|
| 465 | <seg>/etc/hal, /usr/include/hal, /usr/lib/hal,
|
|---|
| 466 | /usr/share/doc/hal-&hal-version;, /usr/share/hal
|
|---|
| 467 | and /var/run/hald</seg>
|
|---|
| 468 | </seglistitem>
|
|---|
| 469 | </segmentedlist>
|
|---|
| 470 |
|
|---|
| 471 | <variablelist>
|
|---|
| 472 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
|---|
| 473 | <?dbfo list-presentation="list"?>
|
|---|
| 474 | <?dbhtml list-presentation="table"?>
|
|---|
| 475 |
|
|---|
| 476 | <varlistentry id="hal-device">
|
|---|
| 477 | <term><command>hal-device</command></term>
|
|---|
| 478 | <listitem>
|
|---|
| 479 | <para>is used to create, remove or show a
|
|---|
| 480 | <application>HAL</application> device.</para>
|
|---|
| 481 | <indexterm zone="hal hal-device">
|
|---|
| 482 | <primary sortas="b-hal-device">hal-device</primary>
|
|---|
| 483 | </indexterm>
|
|---|
| 484 | </listitem>
|
|---|
| 485 | </varlistentry>
|
|---|
| 486 |
|
|---|
| 487 | <varlistentry id="hal-device-manager">
|
|---|
| 488 | <term><command>hal-device-manager</command></term>
|
|---|
| 489 | <listitem>
|
|---|
| 490 | <para>shows a graphical representation of all the devices
|
|---|
| 491 | <application>HAL</application> is aware of. This program requires
|
|---|
| 492 | <xref linkend="hal-runtime-dependencies"/>. Here is a <ulink
|
|---|
| 493 | url="http://cvs.freedesktop.org/*checkout*/hal/hal/doc/spec/hal-devices1.png">
|
|---|
| 494 | screenshot</ulink> of <command>hal-device-manager</command>
|
|---|
| 495 | communicating with the HAL daemon and displaying a tree of device
|
|---|
| 496 | objects. The shown properties in the screenshot are for a device
|
|---|
| 497 | object representing a hard disk.</para>
|
|---|
| 498 | <indexterm zone="hal hal-device-manager">
|
|---|
| 499 | <primary sortas="b-hal-device-manager">hal-device-manager</primary>
|
|---|
| 500 | </indexterm>
|
|---|
| 501 | </listitem>
|
|---|
| 502 | </varlistentry>
|
|---|
| 503 |
|
|---|
| 504 | <varlistentry id="hal-find-by-capability">
|
|---|
| 505 | <term><command>hal-find-by-capability</command></term>
|
|---|
| 506 | <listitem>
|
|---|
| 507 | <para>prints the Unique Device Identifiers for
|
|---|
| 508 | <application>HAL</application> device objects of a given
|
|---|
| 509 | capability.</para>
|
|---|
| 510 | <indexterm zone="hal hal-find-by-capability">
|
|---|
| 511 | <primary sortas="b-hal-find-by-capability">hal-find-by-capability</primary>
|
|---|
| 512 | </indexterm>
|
|---|
| 513 | </listitem>
|
|---|
| 514 | </varlistentry>
|
|---|
| 515 |
|
|---|
| 516 | <varlistentry id="hal-find-by-property">
|
|---|
| 517 | <term><command>hal-find-by-property</command></term>
|
|---|
| 518 | <listitem>
|
|---|
| 519 | <para>prints the Unique Device Identifiers for
|
|---|
| 520 | <application>HAL</application> device objects where a given property
|
|---|
| 521 | assumes a given value.</para>
|
|---|
| 522 | <indexterm zone="hal hal-find-by-property">
|
|---|
| 523 | <primary sortas="b-hal-find-by-property">hal-find-by-property</primary>
|
|---|
| 524 | </indexterm>
|
|---|
| 525 | </listitem>
|
|---|
| 526 | </varlistentry>
|
|---|
| 527 |
|
|---|
| 528 | <varlistentry id="hal-get-property">
|
|---|
| 529 | <term><command>hal-get-property</command></term>
|
|---|
| 530 | <listitem>
|
|---|
| 531 | <para>retrieves a property from a device.</para>
|
|---|
| 532 | <indexterm zone="hal hal-get-property">
|
|---|
| 533 | <primary sortas="b-hal-get-property">hal-get-property</primary>
|
|---|
| 534 | </indexterm>
|
|---|
| 535 | </listitem>
|
|---|
| 536 | </varlistentry>
|
|---|
| 537 |
|
|---|
| 538 | <varlistentry id="hal-set-property">
|
|---|
| 539 | <term><command>hal-set-property</command></term>
|
|---|
| 540 | <listitem>
|
|---|
| 541 | <para>attempts to set property for a device. Note that, due to
|
|---|
| 542 | security considerations, it may not be possible to set a
|
|---|
| 543 | property.</para>
|
|---|
| 544 | <indexterm zone="hal hal-set-property">
|
|---|
| 545 | <primary sortas="b-hal-set-property">hal-set-property</primary>
|
|---|
| 546 | </indexterm>
|
|---|
| 547 | </listitem>
|
|---|
| 548 | </varlistentry>
|
|---|
| 549 |
|
|---|
| 550 | <varlistentry id="hald">
|
|---|
| 551 | <term><command>hald</command></term>
|
|---|
| 552 | <listitem>
|
|---|
| 553 | <para>is the <application>HAL</application> daemon program.</para>
|
|---|
| 554 | <indexterm zone="hal hald">
|
|---|
| 555 | <primary sortas="b-hald">hald</primary>
|
|---|
| 556 | </indexterm>
|
|---|
| 557 | </listitem>
|
|---|
| 558 | </varlistentry>
|
|---|
| 559 |
|
|---|
| 560 | <varlistentry id="lshal">
|
|---|
| 561 | <term><command>lshal</command></term>
|
|---|
| 562 | <listitem>
|
|---|
| 563 | <para>shows all devices and their properties. If the --monitor option
|
|---|
| 564 | is given then the device list and all devices are monitored for
|
|---|
| 565 | changes.</para>
|
|---|
| 566 | <indexterm zone="hal lshal">
|
|---|
| 567 | <primary sortas="b-lshal">lshal</primary>
|
|---|
| 568 | </indexterm>
|
|---|
| 569 | </listitem>
|
|---|
| 570 | </varlistentry>
|
|---|
| 571 |
|
|---|
| 572 | <varlistentry id="libhal">
|
|---|
| 573 | <term><filename class='libraryfile'>libhal.{so,a}</filename></term>
|
|---|
| 574 | <listitem>
|
|---|
| 575 | <para>contains the API functions required by the
|
|---|
| 576 | <application>HAL</application> programs.</para>
|
|---|
| 577 | <indexterm zone="hal libhal">
|
|---|
| 578 | <primary sortas="c-libhal">libhal.{so,a}</primary>
|
|---|
| 579 | </indexterm>
|
|---|
| 580 | </listitem>
|
|---|
| 581 | </varlistentry>
|
|---|
| 582 |
|
|---|
| 583 | <varlistentry id="libhal-storage">
|
|---|
| 584 | <term><filename class='libraryfile'>libhal-storage.{so,a}</filename></term>
|
|---|
| 585 | <listitem>
|
|---|
| 586 | <para>contains the API functions required by the
|
|---|
| 587 | <application>HAL</application> storage and volume utility
|
|---|
| 588 | programs.</para>
|
|---|
| 589 | <indexterm zone="hal libhal-storage">
|
|---|
| 590 | <primary sortas="c-libhal-storage">libhal-storage.{so,a}</primary>
|
|---|
| 591 | </indexterm>
|
|---|
| 592 | </listitem>
|
|---|
| 593 | </varlistentry>
|
|---|
| 594 |
|
|---|
| 595 | </variablelist>
|
|---|
| 596 |
|
|---|
| 597 | </sect2>
|
|---|
| 598 |
|
|---|
| 599 | </sect1>
|
|---|
