diff --git a/[refs] b/[refs]
index 7323a601a9ee..e8cbfcc92248 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6641445c3e05460c5164ab15a17fc4ee481ca213
+refs/heads/master: b18a23495fd4492081a61373fc3ef9f5c59e094a
diff --git a/trunk/include/linux/usb/ch9.h b/trunk/include/linux/usb/ch9.h
index 603b61aadd65..e779af5c800b 100644
--- a/trunk/include/linux/usb/ch9.h
+++ b/trunk/include/linux/usb/ch9.h
@@ -191,6 +191,8 @@ struct usb_ctrlrequest {
 #define USB_DT_WIRE_ADAPTER		0x21
 #define USB_DT_RPIPE			0x22
 #define USB_DT_CS_RADIO_CONTROL		0x23
+/* From the T10 UAS specification */
+#define USB_DT_PIPE_USAGE		0x24
 /* From the USB 3.0 spec */
 #define	USB_DT_SS_ENDPOINT_COMP		0x30