-<?xml version='1.0'?>
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><literal>-=</literal></term>
+ <listitem>
+ <para>Remove the value from a key that holds a list of entries.</para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><literal>:=</literal></term>
<listitem>
</varlistentry>
</variablelist>
- <para>Most of the fields support shell glob pattern matching. The following
- pattern characters are supported:</para>
+ <para>Most of the fields support shell glob pattern matching and
+ alternate patterns. The following special characters are supported:</para>
<variablelist>
<varlistentry>
<term><literal>*</literal></term>
any characters not enclosed are matched.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><literal>|</literal></term>
+ <listitem>
+ <para>Separates alternative patterns. For example, the pattern string
+ <literal>abc|x*</literal> would match either <literal>abc</literal>
+ or <literal>x*</literal>.</para>
+ </listitem>
+ </varlistentry>
</variablelist>
<para>The following keys can get values assigned:</para>
<para>The content of all hwdb files is read by
<citerefentry><refentrytitle>udevadm</refentrytitle><manvolnum>8</manvolnum></citerefentry>
- and compiled to a binary database located at <filename>/etc/udev/hwdb.bin</filename>.
+ and compiled to a binary database located at <filename>/etc/udev/hwdb.bin</filename>,
+ or alternatively <filename>/usr/lib/udev/hwdb.bin</filename> if you want ship the compiled
+ database in an immutable image.
During runtime only the binary database is used.</para>
</refsect1>