From owner-freebsd-current@FreeBSD.ORG Thu May 13 06:07:58 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A027316A4CE for ; Thu, 13 May 2004 06:07:58 -0700 (PDT) Received: from hanoi.cronyx.ru (hanoi.cronyx.ru [144.206.181.53]) by mx1.FreeBSD.org (Postfix) with ESMTP id CAE4B43D46 for ; Thu, 13 May 2004 06:07:57 -0700 (PDT) (envelope-from rik@cronyx.ru) Received: (from root@localhost) by hanoi.cronyx.ru id i4DD6Ag5041083 for freebsd-current@freebsd.org.checked; (8.12.8/vak/2.1) Thu, 13 May 2004 17:06:10 +0400 (MSD) (envelope-from rik@cronyx.ru) Received: from cronyx.ru (hi.cronyx.ru [144.206.181.94]) by hanoi.cronyx.ru with ESMTP id i4DD2rfT040861; (8.12.8/vak/2.1) Thu, 13 May 2004 17:02:53 +0400 (MSD) (envelope-from rik@cronyx.ru) Message-ID: <40A37247.5050700@cronyx.ru> Date: Thu, 13 May 2004 17:04:07 +0400 From: Roman Kurakin User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.6b) Gecko/20031208 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Bruce Evans References: <40A26162.9030607@cronyx.ru> <20040513054339.E13728@gamplex.bde.org> In-Reply-To: <20040513054339.E13728@gamplex.bde.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-current@freebsd.org Subject: Re: Sio & Puc memory mapped X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Thu, 13 May 2004 13:07:58 -0000 Bruce Evans wrote: >On Wed, 12 May 2004, Roman Kurakin wrote: > > >> Does any body workin on support for memory mapped serial adapters? >>As I understand puc (4) allows to add support for such card, but sio (4) >>cant >>serve them any way. >> If nobody doesn't, why so? If no one of developers bother, does anybody >>wants this support? >> >> > >There is little need for it, because it is normal for pci 16550 cards to >have i/o-mapped memory (possibly both memory-mapped and i/o mapped). > > I have one card that is only mem-maped. rik >I have uncommitted changed to use memory-mapped i/o for accessing the data >registers only, since memory mapped i/o tends to be faster. Implementing >memory-mapped i/o more generally is easier. > > >Bruce >_______________________________________________ >freebsd-current@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-current >To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > > > >