From owner-freebsd-mobile@FreeBSD.ORG Sun Jul 6 13:06:44 2003 Return-Path: Delivered-To: freebsd-mobile@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8178337B401 for ; Sun, 6 Jul 2003 13:06:44 -0700 (PDT) Received: from birch.ripe.net (birch.ripe.net [193.0.1.96]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6E46744030 for ; Sun, 6 Jul 2003 13:06:43 -0700 (PDT) (envelope-from marks@ripe.net) Received: from laptop.6bone.nl (cow.ripe.net [193.0.1.239]) by birch.ripe.net (8.12.9/8.11.6) with SMTP id h66K6dRS017679; Sun, 6 Jul 2003 22:06:40 +0200 Received: (nullmailer pid 3588 invoked by uid 1000); Sun, 06 Jul 2003 20:06:39 -0000 Date: Sun, 6 Jul 2003 22:06:39 +0200 From: Mark Santcroos To: Gary Corcoran Message-ID: <20030706200638.GD664@laptop.6bone.nl> References: <5.2.1.1.2.20030706204804.02493a08@194.184.65.4> <5.2.1.1.2.20030706210013.04f9a210@194.184.65.7> <3F087D18.8DB38864@comcast.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3F087D18.8DB38864@comcast.net> User-Agent: Mutt/1.4.1i X-Handles: MS6-6BONE, MS18417-RIPE cc: mobile@freebsd.org Subject: Re: lucent modem ? where it is ? X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Mobile computing with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Jul 2003 20:06:44 -0000 On Sun, Jul 06, 2003 at 03:48:40PM -0400, Gary Corcoran wrote: > Seems you got a "soft modem", which really isn't a modem, but > only a codec (analog-to-digital and digital-to-analog converters). > The rest is done by (windows) software. Your Pentium is responsible > for doing all the work that the DSP of a regular modem does, and so > you don't just need a "driver" in the usual sense. Which is why the > normal Lucent driver won't work, and why you can't just "get specs" > to drive it. In other words, the "driver" has to contain full > Digital Signal Processing code (plus the usual driver code) to > send/receive all the complex audio tones that a modem handles (in > real-time, of course). This is so the manufacturer could save a > couple of dollars (instead of buying the real modem chip)... Your story is true, but doesn't really address the issue. What was meant by "the Lucent driver" (see ports/comms/ltmdm) is a driver for (some of) the ISA/PCI type Lucent softmodems. It is not suited for this type of system (AMR/AC97) (yet). Whether the same driver could be made suitable easily is something I don't know without looking more at it. (Depends on whether it is the same codec probably) Mark -- Mark Santcroos RIPE Network Coordination Centre http://www.ripe.net/home/mark/ New Projects Group/TTM