1 files changed, 8 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/configfs-usb-gadget-acm b/Documentation/ABI/testing/configfs-usb-gadget-acm
new file mode 100644
index 000000000000..5708a568b5f6
--- /dev/null
+++ b/Documentation/ABI/testing/configfs-usb-gadget-acm
@@ -0,0 +1,8 @@
+What:           /config/usb-gadget/gadget/functions/acm.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 acm function's instance "name".