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Date:      Wed, 18 Mar 2015 11:24:44 +0100
From:      Hans Petter Selasky <hps@selasky.org>
To:        Gokul Krishna <gokulkrishna334@gmail.com>
Cc:        freebsd-hackers@freebsd.org, freebsd-usb@freebsd.org
Subject:   Re: GSoC 2015: USB-Front end driver
Message-ID:  <5509526C.8050000@selasky.org>
In-Reply-To: <CA%2B21aciyRO0yokjA-NzrfhbAeBcHrm70_vwyHkVcadGCQrZHGw@mail.gmail.com>
References:  <CA%2B21acgbXduDse2D0UE6Diqn3E8AX5_3w8JFWZ53_dPjUOFm4w@mail.gmail.com>	<54FB120C.7080707@selasky.org>	<54FB132E.9070901@selasky.org>	<550683AF.1010007@selasky.org>	<CA%2B21aciNMZ-vqf5470ybA5=R=bL7ukG51OwKOLhAKJ_8eVvYjQ@mail.gmail.com>	<550708B0.8010601@selasky.org>	<550934CE.9030607@selasky.org> <CA%2B21aciyRO0yokjA-NzrfhbAeBcHrm70_vwyHkVcadGCQrZHGw@mail.gmail.com>

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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




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