remove example rules and put the dev.d stuff into the run_directory folder

The distro rules are the best example you can get and the use of
dev.d/ is no longer recommended.

Signed-off-by: Kay Sievers <kay.sievers@suse.de>

1 files changed, 17 insertions, 0 deletions

diff --git a/extras/run_directory/README b/extras/run_directory/README
new file mode 100644
index 0000000000..022c66451c
--- /dev/null
+++ b/extras/run_directory/README
@@ -0,0 +1,17 @@
+Use these binaries only if you need backward compatibility with
+older udev versions. The use of /etc/dev.d/ is no longer recommended
+Use explicit udev rules with RUN keys to hook into the processing.
+
+  /etc/dev.d/ + /etc/hotplug.d/ directory multiplexing is completely
+  removed from udev itself and must be emulated by calling small
+  helper binaries provided by these helpers:
+      make EXTRAS=extras/run_directory/
+    will build udev_run_devd and udev_run_hotplugd, which can be called
+    from a rule if needed:
+      RUN+="/sbin/udev_run_hotplugd"
+    The recommended way to handle this is to convert all the calls from
+    the directories to explicit udev rules and get completely rid of the
+    multiplexing. (To catch a ttyUSB event, you now no longer need to
+    fork and exit 300 tty script instances you are not interested in, it
+    is just one rule that matches exactly the device.)
+