From owner-svn-src-head@freebsd.org Mon Aug 10 21:09:06 2015 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id F1B8099DCC2; Mon, 10 Aug 2015 21:09:06 +0000 (UTC) (envelope-from ian@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id E37ADE0F; Mon, 10 Aug 2015 21:09:06 +0000 (UTC) (envelope-from ian@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.70]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id t7AL96x4038439; Mon, 10 Aug 2015 21:09:06 GMT (envelope-from ian@FreeBSD.org) Received: (from ian@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id t7AL96No038438; Mon, 10 Aug 2015 21:09:06 GMT (envelope-from ian@FreeBSD.org) Message-Id: <201508102109.t7AL96No038438@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: ian set sender to ian@FreeBSD.org using -f From: Ian Lepore Date: Mon, 10 Aug 2015 21:09:06 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r286596 - head X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Aug 2015 21:09:07 -0000 Author: ian Date: Mon Aug 10 21:09:06 2015 New Revision: 286596 URL: https://svnweb.freebsd.org/changeset/base/286596 Log: Document the change in polarity of the uart(4) PPS capture. Modified: head/UPDATING Modified: head/UPDATING ============================================================================== --- head/UPDATING Mon Aug 10 20:54:03 2015 (r286595) +++ head/UPDATING Mon Aug 10 21:09:06 2015 (r286596) @@ -31,6 +31,20 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 11 disable the most expensive debugging functionality run "ln -s 'abort:false,junk:false' /etc/malloc.conf".) +20150810: + The polarity of Pulse Per Second (PPS) capture events with the + uart(4) driver has been corrected. Prior to this change the PPS + "assert" event corresponded to the trailing edge of a positive PPS + pulse and the "clear" event was the leading edge of the next pulse. + + As the width of a PPS pulse in a typical GPS receiver is on the + order of 1 millisecond, most users will not notice any significant + difference with this change. + + Anyone who has compensated for the historical polarity reversal by + configuring a negative offset equal to the pulse width will need to + remove that workaround. + 20150809: The default group assigned to /dev/dri entries has been changed from 'wheel' to 'video' with the id of '44'. If you want to have