man: clarify $attr{} parent searching

[elogind.git] / udev.xml

diff --git a/udev.xml b/udev.xml
index 71832a2fe5977115e60497874c1a502bea12aca1..7fefe48a44b11b719e78d86ce8326408db2186b7 100644 (file)
--- a/udev.xml
+++ b/udev.xml
@@ -159,6 +159,15 @@
               </listitem>
             </varlistentry>
 
+            <varlistentry>
+              <term><option>NAME</option></term>
+              <listitem>
+                <para>Match the name of the node or network interface. It can
+                be used once the NAME key has been set in one of the preceding
+                rules.</para>
+              </listitem>
+            </varlistentry>
+
             <varlistentry>
               <term><option>SUBSYSTEM</option></term>
               <listitem>
@@ -333,6 +342,12 @@
                 event process for a long period of time may block all further events for
                 this or a dependent device. Long running tasks need to be immediately
                 detached from the event process itself.</para>
+                <para>If the specifiefd string starts with
+                <option>socket:<replaceable>path</replaceable></option>, all current event
+                values will be passed to the specified socket, as a message in the same
+                format the kernel sends an uevent. If the first character of the specified path
+                is an @ character, an abstract namespace socket is used, instead of an existing
+                socket file.</para>
               </listitem>
             </varlistentry>
 
@@ -388,10 +403,9 @@
             </varlistentry>
 
             <varlistentry>
-              <term><option>WAIT_FOR_SYSFS</option></term>
+              <term><option>WAIT_FOR</option></term>
               <listitem>
-                <para>Wait for the specified sysfs file of the device to be created. Can be used
-                to fight against kernel sysfs timing issues.</para>
+                <para>Wait for a file to become available.</para>
               </listitem>
             </varlistentry>
 
@@ -435,6 +449,13 @@
                       detected.</para>
                     </listitem>
                   </varlistentry>
+                  <varlistentry>
+                    <term><option>event_timeout=</option></term>
+                    <listitem>
+                      <para>Number of seconds an event will wait for operations to finish, before it
+                      will terminate itself.</para>
+                    </listitem>
+                  </varlistentry>
                   <varlistentry>
                     <term><option>string_escape=<replaceable>none|replace</replaceable></option></term>
                     <listitem>
@@ -449,7 +470,7 @@
           </variablelist>
 
           <para>The <option>NAME</option>, <option>SYMLINK</option>, <option>PROGRAM</option>,
-          <option>OWNER</option>, <option>GROUP</option>  and  <option>RUN</option>
+          <option>OWNER</option>, <option>GROUP</option>, <option>MODE</option>  and  <option>RUN</option>
           fields support simple printf-like string substitutions. The <option>RUN</option>
           format chars gets applied after all rules have been processed, right before the program
           is executed. It allows the use of the complete environment set by earlier matching
@@ -501,8 +522,8 @@
               <listitem>
                 <para>The value of a sysfs attribute found at the device, where
                 all keys of the rule have matched. If the matching device does not have
-                such an attribute, all devices along the chain of parents are searched
-                for a matching attribute.
+                such an attribute, follow the chain of parent devices and use the value
+                of the first attribute that matches.
                 If the attribute is a symlink, the last element of the symlink target is
                 returned as the value.</para>
               </listitem>
@@ -550,8 +571,16 @@
             <varlistentry>
               <term><option>$name</option></term>
               <listitem>
-                <para>The name of the device node. The value is only set if an earlier
-                rule assigned a value, or during a remove events.</para>
+                <para>The current name of the device node. If not changed by a rule, it is the
+                name of the kernel device.</para>
+              </listitem>
+            </varlistentry>
+
+            <varlistentry>
+              <term><option>$links</option></term>
+              <listitem>
+                <para>The current list of symlinks, separated by a space character. The value is
+                only set if an earlier rule assigned a value, or during a remove events.</para>
               </listitem>
             </varlistentry>
 
@@ -600,7 +629,7 @@
       <refsect1><title>AUTHOR</title>
         <para>Written by Greg Kroah-Hartman <email>greg@kroah.com</email> and
         Kay Sievers <email>kay.sievers@vrfy.org</email>. With much help from
-        Dan  Stekloff <email>dsteklof@us.ibm.com</email> and many others.</para>
+        Dan Stekloff and many others.</para>
       </refsect1>
 
       <refsect1>