Hi Simon,
On 11/27/2012 03:32 PM, Simon Wunderlich wrote:
On Tue, Nov 27, 2012 at 08:49:52PM +0100, Simon Wunderlich wrote:
[...]
The goal of this was to create the spectral scan feature based on public
information, so the results are probably not optimal yet, but I hope that
this will help to move Qualcomm/Atheros disclosing some information (this seems
to be planned anyway[2]). Otherwise, maybe other people can help
reverse-engineering this. :)
Just to clarify: I don't mean anyone should disassemble proprietary object files
or use proprietary source code and re-use these findings without permission to
create this feature - this would probably be illegal anyway.
By reverse-engineering, I mean we can already dump data spectral scan data with
this patchset, but the hard part is to interpret this data correctly - as you'll
find in the patches, there are a lot of bits which we don't know what they
mean, and maybe there is even more info hidden in these bits. I've uploaded
some samples taken on my hardware to the github repo, so anyone can use my
program, matlab, or just stare at these heaps of bytes to find some patterns and
try to interpret it. Actually I was just staring at the bytes myself and wrote
this visualizer to get a better idea what they could mean.
Of course, if we can some docs or support from QCA officially, this would be even
better. :)
Cheers,
Simon
A search brought me to their patent application. The Drawings on their
patent application contain some more information on the signal
classifications. Hopefully this will be able to help you or someone else.
http://www.google.com/patents/US7929508
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
