diff --git a/README b/README
index 98d73b12..4d2013db 100644
--- a/README
+++ b/README
@@ -1,3 +1,18 @@
+--------------
+AVTP Experimental Backend version
+--------------
+
+The IEEE 1722 AVTP media clock backend is located in linux/avb.
+It needs to update the OpenAvnu submodule. 
+PTP and MRP daemons have to be running for the backend to work.
+
+Start jackd2 with the following arguments:
+
+tbd...
+
+
+
+
 -----------------------------------------------------------
 jackdmp (aka JACK2) for Linux, MacOSX, Windows and Solaris
 -----------------------------------------------------------
diff --git a/linux/avb/OpenAvnu b/linux/avb/OpenAvnu
index df587b75..985f3e38 160000
--- a/linux/avb/OpenAvnu
+++ b/linux/avb/OpenAvnu
@@ -1 +1 @@
-Subproject commit df587b7509a4dee7fa79a40eec5d6327310c472b
+Subproject commit 985f3e382e0eecd74b269a7f1d52ce0719914489