From owner-freebsd-hackers@FreeBSD.ORG Sat May 20 05:45:46 2006 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4FF8F16A41F for ; Sat, 20 May 2006 05:45:46 +0000 (UTC) (envelope-from fierykylin@gmail.com) Received: from wx-out-0102.google.com (wx-out-0102.google.com [66.249.82.206]) by mx1.FreeBSD.org (Postfix) with ESMTP id C93FF43D45 for ; Sat, 20 May 2006 05:45:45 +0000 (GMT) (envelope-from fierykylin@gmail.com) Received: by wx-out-0102.google.com with SMTP id i30so342474wxd for ; Fri, 19 May 2006 22:45:45 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=PLWf8qZZc/jvbBqF1vRNKT3R02ZLKTnOye4vBeLhMags04vT0EplwzXIx04fE5J16JwTSbOLx/0qEadwDFvURn19E/2x24jlCShV2hoXou8+VPM1n3O37BkVk086RcLOW9/B1v1N122iJEgeucG683fkMq0i7iof/eXCHP/EVM4= Received: by 10.70.12.16 with SMTP id 16mr2965849wxl; Fri, 19 May 2006 22:45:45 -0700 (PDT) Received: by 10.70.43.11 with HTTP; Fri, 19 May 2006 22:45:45 -0700 (PDT) Message-ID: <87ab37ab0605192245ka4e8582p63f1fc5c32cbb9bf@mail.gmail.com> Date: Sat, 20 May 2006 13:45:45 +0800 From: "william wallace" Sender: fierykylin@gmail.com To: "Warner Losh" In-Reply-To: <20060519.232002.71106210.imp@bsdimp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <87ab37ab0511032030o134b9316j83295dd303e4e44b@mail.gmail.com> <87ab37ab0605192015h363ef74aw23dcc2d97721dea9@mail.gmail.com> <20060519.232002.71106210.imp@bsdimp.com> X-Google-Sender-Auth: 977ef186454ecd8f Cc: "freebsd-hackers@freebsd.org" Subject: Re: misc questions about the device&driver arch X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 20 May 2006 05:45:46 -0000 On 5/20/06, Warner Losh wrote: > > Busses create devices to represent hardware in the system. The bus > then causes these devices to be probed and attached. This latter > usage is for those cases. As drivers are loaded these devices are > offered to the new (and old) drivers in the system. > > > Warner > does that mean that whenever a new device or a new driver is add to the system ,a corresponding deviceclass will equally be created, am i right ,sir? --=20 we who r about to die,salute u!