From 84b6ad702e64db534f67ce32d4dd2fec00a16784 Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Sun, 7 Jul 2013 18:32:34 +0200
Subject: udev: export tags of "dead" device nodes to
 /run/udev/static_node-tags/

Based on a patch by Kay Sievers.

A tag is exported at boot as a symlinks to the device node in the folder
/run/udev/static_node-tags/<tagname>/, if the device node exists.

These tags are cleaned up by udevadm info --cleanup-db, but are otherwise
never removed.
---
 man/udev.xml | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

(limited to 'man')

diff --git a/man/udev.xml b/man/udev.xml
index 553bbfd056..ca8444c12c 100644
--- a/man/udev.xml
+++ b/man/udev.xml
@@ -521,9 +521,13 @@
                 <term><option>static_node=</option></term>
                 <listitem>
                   <para>Apply the permissions specified in this rule to the static device node with
-                  the specified name. Static device node creation can be requested by kernel modules.
-                  These nodes might not have a corresponding kernel device at the time systemd-udevd is
-                  started; they can trigger automatic kernel module loading.</para>
+                  the specified name. Also, for every tag specified in this rule, create a symlink
+                  in the directory
+                  <filename>/run/udev/static_node-tags/<replaceable>tag</replaceable></filename>
+                  pointing at the static device node with the specified name. Static device node
+                  creation is performed by systemd-tmpfiles before systemd-udevd is started. The
+                  static nodes might not have a corresponding kernel device; they are used to
+                  trigger automatic kernel module loading when they are accessed.</para>
                 </listitem>
               </varlistentry>
               <varlistentry>
-- 
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