From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 8653 invoked by alias); 1 Jun 2006 06:45:46 -0000 Received: (qmail 8645 invoked by uid 22791); 1 Jun 2006 06:45:45 -0000 X-Spam-Check-By: sourceware.org Received: from londo.lunn.ch (HELO londo.lunn.ch) (80.238.139.98) by sourceware.org (qpsmtpd/0.31) with ESMTP; Thu, 01 Jun 2006 06:45:23 +0000 Received: from lunn by londo.lunn.ch with local (Exim 3.36 #1 (Debian)) id 1FlgvY-00048z-00; Thu, 01 Jun 2006 08:45:04 +0200 Date: Thu, 01 Jun 2006 06:45:00 -0000 To: Sarah A Bailey Cc: ecos-discuss@ecos.sourceware.org Message-ID: <20060601064504.GA15114@lunn.ch> Mail-Followup-To: Sarah A Bailey , ecos-discuss@ecos.sourceware.org References: <4c8f91e80605311731h63f864a7qbe89bbc89c46f0eb@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4c8f91e80605311731h63f864a7qbe89bbc89c46f0eb@mail.gmail.com> User-Agent: Mutt/1.5.11+cvs20060403 From: Andrew Lunn X-IsSubscribed: yes Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Subject: Re: [ECOS] USB with eCos? X-SW-Source: 2006-06/txt/msg00003.txt.bz2 On Wed, May 31, 2006 at 05:31:23PM -0700, Sarah A Bailey wrote: > Greetings, > I'm currently working on a project with Portland State Aerospace > Society[1] that involves using eCos on an LPC2148 board. I've used > Pawel Wodnicki's patch[2] to port eCos and a simple "hello blinky > world" program to the board. > > Eventually, we'd like to use the LPC2148 in a USB application. I've > been reading the current documentation on writing a USB device driver > with eCos, and I have a couple questions: > > First, is it still true that there's only been one USB device driver > written with eCos? No, this is wrong. For many years there has been two in anoncvs. Recently one for the AT91 was added. There is also a driver for the DS12 soon to be added soon and i know of two other drivers which have been written and might get added. There has been a recent boom in USB! > (I know documentation doesn't always keep up with > the code base.) Is the lack of USB drivers due to flaws in eCos, a > steep learning curve, no need for USB drivers, or something else? I think it has been lack of need. However USB itself can be hard to get right, so don't underestimate the learning curve, time, tools, silicom bugs etc. > Where is that USB device driver located in the repository? packages/devs/usb > Has anyone added isocronous transfer support to the eCos USB base? No, no one has contrubted support for this. > The documentation seemed to imply this was something that would be > added soon. I'm willing to work on this, but I wanted to check first > and see if someone else was. Contributions would be welcome. > Whew, that was a lot of questions. :) Thanks in advance for any answers. No problems. Andrew -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss