From owner-freebsd-current@FreeBSD.ORG Sat Oct 13 06:01:58 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A0C5316A41A for ; Sat, 13 Oct 2007 06:01:58 +0000 (UTC) (envelope-from askbill@conducive.net) Received: from conducive.net (lindfield.ch [203.194.153.81]) by mx1.freebsd.org (Postfix) with ESMTP id 79B2513C44B for ; Sat, 13 Oct 2007 06:01:57 +0000 (UTC) (envelope-from askbill@conducive.net) Received: from cm218-253-81-177.hkcable.com.hk ([218.253.81.177]:60063 helo=pb.local) by conducive.net with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.63 (FreeBSD)) (envelope-from ) id 1Iga4R-000718-UQ for freebsd-current@freebsd.org; Sat, 13 Oct 2007 06:01:55 +0000 Message-ID: <47105F53.7060701@conducive.net> Date: Sat, 13 Oct 2007 02:01:55 -0400 From: =?UTF-8?B?6Z+T5a625qiZIEJpbGwgSGFja2Vy?= User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.1.2) Gecko/20070221 SeaMonkey/1.1.1 MIME-Version: 1.0 To: freebsd-current@freebsd.org References: <200710111741.34992.jhb@FreeBSD.org> <622950DD-BFEF-450C-8B80-BAB55C7B58CB@mac.com> <200710121409.31407.jhb@freebsd.org> In-Reply-To: <200710121409.31407.jhb@freebsd.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: New-bus unit wiring via hints.. X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 13 Oct 2007 06:01:58 -0000 John Baldwin wrote: > On Thursday 11 October 2007 05:59:23 pm Marcel Moolenaar wrote: >> On Oct 11, 2007, at 2:41 PM, John Baldwin wrote: >> *snip* > on the PCI-ISA bridge of the controlling register) and the fact that COM1 and > COM2 have de-facto fixed resources on x86, I think it's ok for x86 to include > default hints for sio0 and sio1. > Historically, COM1: - COM(n): assignments were not that hard-and-fast *anyway* - ergo a once-common BIOS option to reverse them or move 1 or 2 ports within 4 address blocks. To an extent, the 'complaint' is only that modern BIOS and OS haven't undone that long legacy of ambiguity, and 'auto' is a 'don't really care' option. And why try? The physical serial ports are being phased out on many newer MB. Lucky to get a header block. Server grade system boards might be expected to keep 'a' serial port for a while yet, but most laptops have long-since shed them. Scare resources are perhaps better applied to sorting other 'challenging' bus device issues. Such as the vexation that the current rate of progress/economic necessity is causing I/O devices in general to appear, live a *very* short economic life, and be replaced by yet-another newer one at a rate that doesn't allow thorough testing even IF there has been time to code a driver. That's not limited to F/OSS, either... :-( Bill