From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759701AbZFLVk1 (ORCPT ); Fri, 12 Jun 2009 17:40:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752903AbZFLVkU (ORCPT ); Fri, 12 Jun 2009 17:40:20 -0400 Received: from turing-police.cc.vt.edu ([128.173.14.107]:33049 "EHLO turing-police.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754691AbZFLVkT (ORCPT ); Fri, 12 Jun 2009 17:40:19 -0400 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: "R.F. Burns" Cc: linux-kernel@vger.kernel.org Subject: Re: PC speaker In-Reply-To: Your message of "Fri, 12 Jun 2009 17:28:40 EDT." From: Valdis.Kletnieks@vt.edu References: Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1244842821_4013P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Fri, 12 Jun 2009 17:40:21 -0400 Message-ID: <84678.1244842821@turing-police.cc.vt.edu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_1244842821_4013P Content-Type: text/plain; charset=us-ascii On Fri, 12 Jun 2009 17:28:40 EDT, "R.F. Burns" said: > Is it possible to write a kernel module which, when loaded, will blow > the PC speaker? Highly unlikely, as the circuitry *driving* the speaker is probably hard-wired to not output more than the speaker coils can handle. You *might* be able to find a way to generate a nasty square wave that will over time stress the speaker cone - but a "*pow* it's dead"? Probably not. If your speaker just fried, it's more likely a short or other hardware or mechanical defect. --==_Exmh_1244842821_4013P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFKMstFcC3lWbTT17ARAr7/AKDUmzIkGXKporS46eonj27bp3W2tACfdgZA MlFq7TAbk8HYcPY6xwRZFTY= =o4Ds -----END PGP SIGNATURE----- --==_Exmh_1244842821_4013P--