From owner-freebsd-hackers  Mon Dec 18 12:15:15 2000
From owner-freebsd-hackers@FreeBSD.ORG  Mon Dec 18 12:15:13 2000
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mail.interware.hu (mail.interware.hu [195.70.32.130])
	by hub.freebsd.org (Postfix) with ESMTP id 517AE37B400
	for <hackers@freebsd.org>; Mon, 18 Dec 2000 12:15:11 -0800 (PST)
Received: from harare-13.budapest.interware.hu ([195.70.50.13] helo=elischer.org)
	by mail.interware.hu with esmtp (Exim 3.16 #1 (Debian))
	id 1486gb-0000T1-00; Mon, 18 Dec 2000 21:15:06 +0100
Sender: julian@FreeBSD.ORG
Message-ID: <3A3E701A.A104A940@elischer.org>
Date: Mon, 18 Dec 2000 12:14:18 -0800
From: Julian Elischer <julian@elischer.org>
X-Mailer: Mozilla 4.7 [en] (X11; U; FreeBSD 5.0-CURRENT i386)
X-Accept-Language: en, hu
MIME-Version: 1.0
To: Warner Losh <imp@village.org>
Cc: Wes Peters <wes@softweyr.com>,
	Devin Butterfield <dbutter@wireless.net>, hackers@FreeBSD.ORG
Subject: Re: Writing Device Drivers
References: <3A3E042F.7DEE0346@elischer.org>  <3A3D513B.52737F48@wireless.net> <3A3D9D80.61F1EAFC@softweyr.com> <200012181732.KAA91834@harmony.village.org>
Content-Type: text/plain; charset=iso-8859-15
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-hackers@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

Warner Losh wrote:
> 
> In message <3A3E042F.7DEE0346@elischer.org> Julian Elischer writes:
> : I have the pci/isa driver skeleton pretty up-to-date, but it doesn't
> : have any DMA example code, nor does it have any sample code for
> : pccard or cardbus .
> 
> Aren't there two kinds of DMA that we need to worry about?  Those that
> are "isadma" where you have to program the DMA controller, and the
> more conventional DMA where the device becomes the bus master and the
> bytes just appear in host memory?
> 
> Also, cardbus should be a 1 liner.  I'll add that to your examples.
> Do you want to review them, or can I just do this and any other tweaks
> that might be necessary?

just add them.
I'll be as interested to see what it is as everyone else :-)

> 
> Warner
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-hackers" in the body of the message

-- 
      __--_|\  Julian Elischer
     /       \ julian@elischer.org
    (   OZ    ) World tour 2000
---> X_.---._/  presently in:  Budapest
            v


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message