From owner-freebsd-hackers@FreeBSD.ORG Tue Mar 16 05:53:04 2004 Return-Path: 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 6E9B516A4CE for ; Tue, 16 Mar 2004 05:53:04 -0800 (PST) Received: from schlepper.zs64.net (schlepper.zs64.net [212.12.50.230]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3842443D1F for ; Tue, 16 Mar 2004 05:53:03 -0800 (PST) (envelope-from stb@lassitu.de) Received: from [127.0.0.1] (schlepper [212.12.50.230]) by schlepper.zs64.net (8.12.10/8.11.1) with ESMTP id i2GDr17D060814; Tue, 16 Mar 2004 14:53:01 +0100 (CET) (envelope-from stb@lassitu.de) In-Reply-To: <200403161629.04021.doconnor@gsoft.com.au> References: <200403161629.04021.doconnor@gsoft.com.au> Mime-Version: 1.0 (Apple Message framework v613) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <3CC6F94B-7751-11D8-B803-000393496BE8@lassitu.de> Content-Transfer-Encoding: 7bit From: Stefan Bethke Date: Tue, 16 Mar 2004 14:53:00 +0100 To: "Daniel O'Connor" X-Mailer: Apple Mail (2.613) X-Mailman-Approved-At: Wed, 17 Mar 2004 05:12:34 -0800 cc: freebsd-hackers@freebsd.org Subject: Re: How to write a new line discipline? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Mar 2004 13:53:04 -0000 Am 16.03.2004 um 06:59 schrieb Daniel O'Connor: > The current disciplines seem to be either very very old, or 'hacks' > for things > like PPP or SLIP :( In another life, I put together a small line discipline to "talk" to dumb UPSes that signal via DTR and RTS, and can be shut down via DSR or CTS. This was in the 2.2 timeframe, so I doubt this will be of much use to you, but here it is anyway: Stefan -- Stefan Bethke Fon +49 170 346 0140