From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 6 Nov 2000 07:00:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 6 Nov 2000 07:00:17 -0500 Received: from panic.ohr.gatech.edu ([130.207.47.194]:24332 "EHLO havoc.gtf.org") by vger.kernel.org with ESMTP id ; Mon, 6 Nov 2000 07:00:15 -0500 Message-ID: <3A069CA8.5BB5FF20@mandrakesoft.com> Date: Mon, 06 Nov 2000 06:57:28 -0500 From: Jeff Garzik Organization: MandrakeSoft X-Mailer: Mozilla 4.75 [en] (X11; U; Linux 2.4.0-test10 i686) X-Accept-Language: en MIME-Version: 1.0 To: David Woodhouse CC: Dan Hollis , Alan Cox , Oliver Xymoron , Keith Owens , linux-kernel@vger.kernel.org Subject: Re: Persistent module storage [was Linux 2.4 Status / TODO page] In-Reply-To: <3A0698A8.8D00E9C1@mandrakesoft.com> <3A0693E9.B4677F4E@mandrakesoft.com> <24273.973508761@redhat.com> <28752.973510632@redhat.com> <29788.973511264@redhat.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org David Woodhouse wrote: > > jgarzik@mandrakesoft.com said: > > > * User continues to happily listen to radio through sound card > > You're using the sound card without a driver? > > Yes. The sound card allows itself to be unloaded when the pass-through mixer > levels are non-zero. This is reasonable iff it can be reloaded without > destroying those levels again. I don't think that is reasonable. The first thing most drivers do is reset the hardware. That inevitably leads to some sort of blip, when it comes to sound drivers. If you -don't- reset the hardware, the driver is using hardware that is in an unknown state. (using hardware w/out resetting it == unknown state) You are depending on the hardware to keep its state -between- driver unload and driver reload. That seems inherently unstable to me. It amazes me that such is supported. Jeff -- Jeff Garzik | Dinner is ready when Building 1024 | the smoke alarm goes off. MandrakeSoft | -/usr/games/fortune - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/