Received: by 2002:a25:ab43:0:0:0:0:0 with SMTP id u61csp141864ybi; Thu, 13 Jun 2019 13:08:14 -0700 (PDT) X-Google-Smtp-Source: APXvYqzE8a7zo6K1zXu0UEhpofQQcg+iAOMZzH0NOcLrjlYruH+5WerP+Xw/LB+PKd+u8P8JoQdx X-Received: by 2002:a17:902:296a:: with SMTP id g97mr16603591plb.115.1560456494682; Thu, 13 Jun 2019 13:08:14 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560456494; cv=none; d=google.com; s=arc-20160816; b=I5VeeSy2vd0S469bZP9KCTAXXwBslK4lZG2C65i3aS/1QkxeSViH+x7c/dLk1wk26B nROkW+FsW4427uB21xuCP9jxT6nyxkhGyKo7mP61Mfye+05UOIM6TdeJgvRQSBVEkOtL SszrwMxSSQjEL5k/f5pBCcFy9cC6Mv3/W8rJevKHjbaR6eGETXYyd7HC9QvSXDHQh6+/ pf3WI0DrGfvaLjDAhdzlXEee6a6+bLGpaxE4JYqAxXpoShETKqqYTHSNZzSNEfnGSX80 hh00uXp3tK8+0+APYuOv/hQY0w0qV08w2M3OMvhrO6tPWKmPG4z5NtNcA0iKJdEwBbWE gXrQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:to:subject:dkim-signature; bh=ZmPiORcOHqHhQtMeKPGW/zsji3FUaaCaqkpqz5XaKfM=; b=gN/AKbe5+FCtzww+nIE07YAZg2Tb04WxdnqIa4T6fLzqdnI9V4RtSOShkHu+FHQS8P 6aMSpO+s3nmb7cM4sqHG4bklfIrDaMYTCSzMHSD5d4uIcBppTjyqvi83F+FOV5jfhu18 YZlb1ZzqgZ1gUI2hOZSUmjt1cn09UsVhYhj0aE0DbznjV6tPQArCzfebRpxJBuR+/YyX LAjGabpPCR53TEN0mRGncMfFJGs65nHPqeljpM8Lt//MNfDOssMT/TOp21kEH+iSHSEC 6hvFtifg86hShvA5+WoPke/s+fscD2auMkkUP5vnVTYTcKqj1HKsE60H7AuuFcK8NAJA 6W5A== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=moxFGE19; 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 k1si397582pfa.25.2019.06.13.13.07.59; Thu, 13 Jun 2019 13:08:14 -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; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=moxFGE19; 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 S1727460AbfFMUHu (ORCPT + 99 others); Thu, 13 Jun 2019 16:07:50 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:52548 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726894AbfFMUHt (ORCPT ); Thu, 13 Jun 2019 16:07:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:To: Subject:Sender:Reply-To:Cc:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=ZmPiORcOHqHhQtMeKPGW/zsji3FUaaCaqkpqz5XaKfM=; b=moxFGE191G2MhREBT+t4ixwAD zJWs1ILiWaY7S0TDVcWLPP9PhdnO0V5IQWaIx9ewrrWBtJ30ULz49pHNXB16ETkDUD6200s/1KeeK P5uDaz0z36I5UGT6k7oEFPGLyy+nVbDnVIQCQg30uVIgnvubZZFsfVAyvN3bPxnuaH8qap1DZ4Qw2 BjvBk0zvuWF398KUsLJBSfpllemaUC7RaKhsHMGBq6s7WKt+D66eeHncon7RLKVtm+FxdIMqlhFVy 9sNU4f6QOaVJGHJaX9Nm7jY5hbAJAO/tyEahbjeYz2oz5N5utTlr7Hj2zqiSX9C6oCsN4cFS0sbKI ekg3sh2CA==; Received: from static-50-53-52-16.bvtn.or.frontiernet.net ([50.53.52.16] helo=midway.dunlab) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1hbW0i-0000R9-CE; Thu, 13 Jun 2019 20:07:48 +0000 Subject: Re: PC speaker To: Theodore Ts'o , "R.F. Burns" , linux-kernel@vger.kernel.org References: <20190613195705.GC9609@mit.edu> From: Randy Dunlap Message-ID: Date: Thu, 13 Jun 2019 13:07:45 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20190613195705.GC9609@mit.edu> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/13/19 12:57 PM, Theodore Ts'o wrote: > 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 > Must be some kind of ritual by R.F. Burns: Lots of repeated postings from them on June 12 of multiple years. See https://lore.kernel.org/lkml/CABG1boNJirPD1bh5PyETz8jVSV6PyMwPYfhhVQWyztp8W-XjRg@mail.gmail.com/ -- ~Randy