Received: by 2002:a25:ab43:0:0:0:0:0 with SMTP id u61csp132586ybi; Thu, 13 Jun 2019 12:59:23 -0700 (PDT) X-Google-Smtp-Source: APXvYqz934uw4wbVONfW2in6Lp0lOiuwABCA3IUowTlLzDrLw+cqKb8RgvkJ5HGXryI6EYfQcyE6 X-Received: by 2002:a17:902:e211:: with SMTP id ce17mr8081302plb.193.1560455963501; Thu, 13 Jun 2019 12:59:23 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560455963; cv=none; d=google.com; s=arc-20160816; b=Ftz4xbn54P8GoNr4V8/yzNXt69SW+rC6p/O7u5fZPfwfbXmaYW8QrnUD3vXN4kWKPP AbpoChVQX5h9RVKUYOK8cRNYiEFxWDfk0QlM3FCjbAP7EJkb6fcMhHwwSJzjGI9YdvXO G6T6aBZC340eELh5yDhqLiU61kMTrXqplRZ2sPKSiLFFmQ3Xqlssd8GMkq4RfG65tEQS kYpvrgA66hNcRv8N/gi3VS8TQ71aX+txlfx1NV3C7riNy0j6KPESOprK9j3lxUK1j9MB 6+U3As1W4AAYrtX0pNGqkN6H+pNnx3/GDI8wUbi5EtcbO7UwkQS06dU9SiLBCqIauRkR 9EQA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:mail-followup-to :message-id:subject:cc:to:from:date; bh=2fyZ0EChlch6bcfIriGPb56LDH00rzwZXEVSxebmEQs=; b=pXvcBspFs73MlPeOkr5yWhQr9DGma64b1vLrENgnrLfnqcg33rxHcsoG/1pNnH0M5w /r3QkL78b3lE113/HYGzd4pfKKFoIgtuoJXVz9nwyl8so00z8RLK+4a2RQUJTtvAgYqX tyme/UOT8bLQn7GVDJeY7kW6AWREQxlNhlvl0s/DsNYyuCWAlhwuvcZugW6gUb5XbepT AY2+vpY0BP8tUo4jfVqROKPLm5t44RlgQaFnKLO9/3rWj5ksqSW9/qssQRy/x28o21fm CxYG/gGDP7cF3QYE1Neks36GDxYxveLJjdRBO3KuD/+nRHdxjjq6WEzthYczmV548w3i x5YA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id n11si494126pgq.498.2019.06.13.12.59.08; Thu, 13 Jun 2019 12:59:23 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729005AbfFMT5L (ORCPT + 99 others); Thu, 13 Jun 2019 15:57:11 -0400 Received: from outgoing-auth-1.mit.edu ([18.9.28.11]:55327 "EHLO outgoing.mit.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726379AbfFMT5L (ORCPT ); Thu, 13 Jun 2019 15:57:11 -0400 Received: from callcc.thunk.org (guestnat-104-133-0-109.corp.google.com [104.133.0.109] (may be forged)) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id x5DJv68X008670 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 13 Jun 2019 15:57:06 -0400 Received: by callcc.thunk.org (Postfix, from userid 15806) id D73F0420484; Thu, 13 Jun 2019 15:57:05 -0400 (EDT) Date: Thu, 13 Jun 2019 15:57:05 -0400 From: "Theodore Ts'o" To: "R.F. Burns" Cc: linux-kernel@vger.kernel.org Subject: Re: PC speaker Message-ID: <20190613195705.GC9609@mit.edu> Mail-Followup-To: Theodore Ts'o , "R.F. Burns" , linux-kernel@vger.kernel.org References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jun 13, 2019 at 12:16:37PM -0400, R.F. Burns wrote: > Is it possible to write a kernel module which, when loaded, will blow > the PC speaker? Yes; in fact, it's already been done. See sound/drivers/pcsp/ in the Linux kernel sources. - Ted