diff --git a/[refs] b/[refs]
index 575e5ec37a46..0e89ab73d5c2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 257ee97eeb90aaf70cc891577d69afa63d81ceea
+refs/heads/master: 7078daa020db5ba501fa3de64b8653c221a640b4
diff --git a/trunk/include/linux/uvcvideo.h b/trunk/include/linux/uvcvideo.h
index f46a53f060d7..3b081862b9e8 100644
--- a/trunk/include/linux/uvcvideo.h
+++ b/trunk/include/linux/uvcvideo.h
@@ -58,7 +58,8 @@ struct uvc_xu_control_mapping {
 struct uvc_xu_control_query {
 	__u8 unit;
 	__u8 selector;
-	__u8 query;
+	__u8 query;		/* Video Class-Specific Request Code, */
+				/* defined in linux/usb/video.h A.8.  */
 	__u16 size;
 	__u8 __user *data;
 };