On Tue, Feb 13, 2007 at 03:28:48PM +1100, ronnie sahlberg wrote:
> Please let me try again:
> 
> Assume very exotic USB device X exists.
> Assume it would be desireable to be able to use this device with Linux.
> Assume that unfortunately there exists no documentation on how to
> initialize or drive device X. This makes it very difficult to write a
> driver for Linux for this device.
> Assume that only drivers and applications exist for windows to utilize
> this device.
> 
> Would it in this case be useful to have wireshark support one/any of
> the various USBoverIP implementations that exist for windows.
> I.e. as a vehicle to collect data on HOW to initialize and communicate
> with the device by studying how the vendor provided application talks
> to this device?
> Or would this be pointless since all linux driver developers already
> have alternative and better solutions available to collect this
> information they need in order to write the linux driver?

We already have the usbsnoopy tool, that lets you sniff the direct usb
connection on the windows machine, dumping the data sent to and from the
device.

We also can run windows on top of Linux, using vmware and either watch
the raw usbfs packets go by, or use usbmon on Linux to dump the data.

So I think that using wireshark might be a lot of overkill, as then
someone would have to purchase one of the usb-over-ip drivers for
windows and have two windows machines running to do this kind of reverse
engineering.

But hey, if you want to add this support, that's fine with me :)

thanks,

greg k-h

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