From: anton <anton@openbsd.org>
Date: Thu, 2 Sep 2021 15:15:12 +0000 (+0000)
Subject: Explain in a comment why two wscons_keydesc structures are needed.
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=58facf3359453584a480f6b640162c1310cabc04;p=openbsd

Explain in a comment why two wscons_keydesc structures are needed.
---

diff --git a/sys/dev/usb/ucc.c b/sys/dev/usb/ucc.c
index b5266235975..0c87925bc53 100644
--- a/sys/dev/usb/ucc.c
+++ b/sys/dev/usb/ucc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ucc.c,v 1.23 2021/09/01 10:41:39 anton Exp $	*/
+/*	$OpenBSD: ucc.c,v 1.24 2021/09/02 15:15:12 anton Exp $	*/
 
 /*
  * Copyright (c) 2021 Anton Lindqvist <anton@openbsd.org>
@@ -82,6 +82,10 @@ struct ucc_softc {
 		u_char	sc_last_raw;
 	};
 
+	/*
+	 * Only the first element is populated whereas the second remains zeroed
+	 * out since such trailing sentinel is required by wskbd_load_keymap().
+	 */
 	struct wscons_keydesc	  sc_keydesc[2];
 	struct wskbd_mapdata	  sc_keymap;
 };