From owner-freebsd-hackers@FreeBSD.ORG Mon Aug 22 08:08:41 2005 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 60F8916A41F for ; Mon, 22 Aug 2005 08:08:41 +0000 (GMT) (envelope-from m.ehinger@ltur.de) Received: from posty.gateway-inter.net (posty.gateway-inter.net [213.144.19.86]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1BF7443D45 for ; Mon, 22 Aug 2005 08:08:40 +0000 (GMT) (envelope-from m.ehinger@ltur.de) To: freebsd-hackers@freebsd.org Message-ID: From: m.ehinger@ltur.de Date: Mon, 22 Aug 2005 10:08:01 +0200 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII X-Mailman-Approved-At: Mon, 22 Aug 2005 12:08:33 +0000 Subject: IBM Active Protection System Approach 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: Mon, 22 Aug 2005 08:08:41 -0000 Hi, what would be the best approach to implement aps on FreeBSD? I got an Accelerometer driver which will deliver data. First Version is available at https://sourceforge.net/project/showfiles.php?group_id=138242&package_id=160977 We have to poll the device for information quiet often to detect a possible shock early enough to park disk drive heads. What else must be done to prevent a possible data loss? There is also an discussion about that concerning linux. http://sourceforge.net/mailarchive/forum.php?forum=hdaps-devel Would an daemon be sufficient for that? Reaction time? What about an kernel thread? Other solutions? thanks in advance Maik