[PATCH] Add kernel<->userspace ABI stability documentation

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 16 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-class b/Documentation/ABI/testing/sysfs-class
new file mode 100644
index 000000000000..4b0cb891e46e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class
@@ -0,0 +1,16 @@
+What:           /sys/class/
+Date:           Febuary 2006
+Contact:        Greg Kroah-Hartman <gregkh@suse.de>
+Description:
+                The /sys/class directory will consist of a group of
+                subdirectories describing individual classes of devices
+                in the kernel.  The individual directories will consist
+                of either subdirectories, or symlinks to other
+                directories.
+
+                All programs that use this directory tree must be able
+                to handle both subdirectories or symlinks in order to
+                work properly.
+
+Users:
+        udev <linux-hotplug-devel@lists.sourceforge.net>