From owner-freebsd-current Thu Feb 20 0: 6:44 2003 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 CEF4437B401; Thu, 20 Feb 2003 00:06:42 -0800 (PST) Received: from phk.freebsd.dk (phk.freebsd.dk [212.242.86.175]) by mx1.FreeBSD.org (Postfix) with ESMTP id A9B7E43F75; Thu, 20 Feb 2003 00:06:41 -0800 (PST) (envelope-from phk@phk.freebsd.dk) Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.86.163]) by phk.freebsd.dk (8.12.6/8.12.6) with ESMTP id h1K86a6E007751; Thu, 20 Feb 2003 08:06:36 GMT (envelope-from phk@phk.freebsd.dk) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.12.6/8.12.6) with ESMTP id h1K86WOx030196; Thu, 20 Feb 2003 09:06:34 +0100 (CET) (envelope-from phk@phk.freebsd.dk) To: Takahashi Yoshihiro Cc: imp@bsdimp.com, peter@wemm.org, sos@FreeBSD.ORG, current@FreeBSD.ORG, mdodd@FreeBSD.ORG Subject: Re: The cbus driver for pc98 From: phk@phk.freebsd.dk In-Reply-To: Your message of "Thu, 20 Feb 2003 16:55:55 +0900." <20030220.165555.112582534.nyan@jp.FreeBSD.org> Date: Thu, 20 Feb 2003 09:06:32 +0100 Message-ID: <30195.1045728392@critter.freebsd.dk> Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In message <20030220.165555.112582534.nyan@jp.FreeBSD.org>, Takahashi Yoshihiro writes: >In article <20030217.103016.58455672.imp@bsdimp.com> >"M. Warner Losh" writes: > >> Cbus is to ISA as CardBus is to PCI in many ways. Cbus is very much >> like ISA in all but a few details. CardBus is pci with a few twists >> and turns that differ. If you look at how we've implemented cardbus, >> you'll see that we've tried to do it as a 'subclass' of the pci bus. >> We implement the PCI interfaces in the cardbus bus code, even though >> it is not really a pci bus. I'd propose that cbus implements the ISA >> interfaces in a similar manner. > >If my understanding is not a mistake, the CardBus specifications is >derived from the PCI. Therefore, I can understand that the cardbus >driver depend on the pci driver. But, the Cbus is NOT derived from >the ISA. So, I think that the cbus driver should not depend on the >isa driver. This increasingly sounds like an emotional thing rather than a technical thing :-( -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message