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Re: [pwc] USB snoop dumps for Logitech Notebooks Pro

To: Philips Webcam Linux Driver <>
Subject: Re: [pwc] USB snoop dumps for Logitech Notebooks Pro
From: Luc Saillard <>
Date: Thu, 1 Dec 2005 23:17:27 +0100
On Thu, Dec 01, 2005 at 09:27:04PM +0000,  wrote:
> I have two USBSnoop dumps from my Logitech Quickcam Notebooks Pro
> ID 046d:08C3
> I can send them if someone thinks they are usefull.
 
Thanks for your log, i've look quickly into the file. They are no data
dump, but some information like "Video Control Input Terminal Descriptor".
I've search on the usb forum, and found a link[1] that talk about video class
for usbdevice, seems be recent (2003). And new release of the documentation
in june of this year. The second good thing is that your log analyser already
told me that frame is send using mjpeg format. So it's pretty easy to decode
them (no need to write a private decoder) as any multimedia player or
digital camera can play this stream.

So now, i've two options, buy a new webcam, and write a driver for it. (i've
already my pci wifi card). Try to write a driver from the spec, and let
someone test it. Or post a mail to the linus-usbdevel mailing list for help
as specifications seems to be available.

Luc

[1] http://www.usb.org/developers/devclass_docs/

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