Documentation/ABI/testing: configfs-based usb gadgets

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-obex b/Documentation/ABI/testing/configfs-usb-gadget-obex
new file mode 100644
index 0000000..aaa5c96
--- /dev/null
+++ b/Documentation/ABI/testing/configfs-usb-gadget-obex
@@ -0,0 +1,9 @@
+What:		/config/usb-gadget/gadget/functions/obex.name
+Date:		Jun 2013
+KenelVersion:	3.11
+Description:
+
+		This item contains just one readonly attribute: port_num.
+		It contains the port number of the /dev/ttyGS<n> device
+		associated with obex function's instance "name".
+