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-rw-r--r--udev.xml21
1 files changed, 16 insertions, 5 deletions
diff --git a/udev.xml b/udev.xml
index 8434156530..b2781b767d 100644
--- a/udev.xml
+++ b/udev.xml
@@ -174,7 +174,9 @@
<para>Match sysfs attribute values of the event device. Up to five
<option>ATTR</option> keys can be specified per rule. Trailing
whitespace in the attribute values is ignored, if the specified match
- value does not contain trailing whitespace itself.</para>
+ value does not contain trailing whitespace itself. Depending on the type
+ of operator, this key is also used to set the value of a sysfs attribute.
+ </para>
</listitem>
</varlistentry>
@@ -213,8 +215,8 @@
<term><option>ENV{<replaceable>key</replaceable>}</option></term>
<listitem>
<para>Match against the value of an environment variable. Up to five <option>ENV</option>
- keys can be specified per rule. This key can also be used to export a variable to
- the environment.</para>
+ keys can be specified per rule. Depending on the type of operator, this key is also used
+ to export a variable to the environment.</para>
</listitem>
</varlistentry>
@@ -295,10 +297,19 @@
</varlistentry>
<varlistentry>
+ <term><option>ATTR{<replaceable>key</replaceable>}</option></term>
+ <listitem>
+ <para>The value that should be written to a sysfs attribute of the
+ event device. Depending on the type of operator, this key is also
+ used to match against the value of a sysfs attribute.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
<term><option>ENV{<replaceable>key</replaceable>}</option></term>
<listitem>
- <para>Export a variable to the environment. This key can also be used to match
- against an environment variable.</para>
+ <para>Export a variable to the environment. Depending on the type of operator,
+ this key is also to match against an environment variable.</para>
</listitem>
</varlistentry>