From owner-freebsd-hackers@FreeBSD.ORG Wed Mar 18 10:24:01 2015 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 4FAF11A6; Wed, 18 Mar 2015 10:24:01 +0000 (UTC) Received: from mail.turbocat.net (heidi.turbocat.net [88.198.202.214]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 099FFFFC; Wed, 18 Mar 2015 10:24:00 +0000 (UTC) Received: from laptop015.home.selasky.org (cm-176.74.213.204.customer.telag.net [176.74.213.204]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.turbocat.net (Postfix) with ESMTPSA id A33A11FE023; Wed, 18 Mar 2015 11:23:58 +0100 (CET) Message-ID: <5509526C.8050000@selasky.org> Date: Wed, 18 Mar 2015 11:24:44 +0100 From: Hans Petter Selasky User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: Gokul Krishna Subject: Re: GSoC 2015: USB-Front end driver References: <54FB120C.7080707@selasky.org> <54FB132E.9070901@selasky.org> <550683AF.1010007@selasky.org> <550708B0.8010601@selasky.org> <550934CE.9030607@selasky.org> In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-hackers@freebsd.org, freebsd-usb@freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Mar 2015 10:24:01 -0000 Hi, On 03/18/15 11:19, Gokul Krishna wrote: > Hi > Sure I will do that. > I watched the video on USB stack on freeBSD and I could able understand > those USB data transfer management constructs and other things explained . > I also checked the vusb-analyser which is a Virtual USB Bus-analyser and > understood certain debugging things that it gives information of data > including device address from device descriptor and amount of data transfer > from interface and endpoint (In and Out buffers) descriptors data > structures . Another idea might be to implement a USB backend for Wireshark. It also can understand USB transactions! > > The aim of the project is to convert XEN USB device model( made with Linux > requirement ) into something compatible with FreeBSD USB Stack. Right! > > I also try to see things on para-virtualised XEN USB . I found the > appropriate front-end driver source tree in slide number 7 in the below pdf > link. > http://www-archive.xenproject.org/files/xensummit_oracle09/PVUSB.pdf > (please give your suggestions and comments and will i have access to see > this code) > I think i need to go through this particular source code to find my precise > task > > So I will have more clarity in planning the list of milestone tasks for > mid-term deliverables toll gate and final deliverables toll gates which i > need to get reviewed from you before applying the proposal. When you have something ready, just contact me off-list and I'll give it a review. --HPS