[Ethereal-dev] Re: Getting signal from USB port

["hasna dahnini" <hasna_dahnini@xxxxxxxxxxx>]

Guy Harris wrote:

> ...there are (at least) two issues I see:
>
> 	1) getting Profibus signals from some USB device;
>
> 	2) decoding the resulting information.
>
> 1) is a problem that is mainly a non-Ethereal problem.
>
> If you can solve 1) in a fashion that lets you, for example, read
> Profibus signal information into a file, *and* that the file can be
> broken into packets - i.e., that Profibus is a packet-oriented protocol,
> and that you'll be analyzing packets rather than, for example, signal
> waveforms (Ethereal isn't a waveform analyzer) - then the only part of
> 1) that would involve Ethereal would be writing code to read the file,
> and then you'd write a dissector for Profibus that processes the data
> you'd read from the file.

Do you mean that I must write a program that will read on the USB port and 
will write Profibus packets on a file that Ethereal will be able to analyse 
with a Profibus dissector ?