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Date: Mon, 6 Dec 2010 17:58:08 +0100
From: "Stefan Schwalowsky (inIT)" <stefan.schwalowsky@hs-owl.de>
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Subject: How to get medium (carrier-sense) information from Atheros chipsets?
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Hello,
I'm working on a research project dealing with real-time capabilities of 
WLAN. Currently I'm analyzing the ATH5K driver and trying to find a way 
to get information about the medium state (carrier-sense state) . I want 
to check whether the medium is currently occupied by other stations or 
not. Is there a way to get the carrier sense information from the 
hardware through a status-register or so? (Currently we have a AR5413 
Chip, but any other would also be OK)  The only information i found was 
about the profile count registers, which doesn't really meet our 
requirements.

I greatly appreciate your help

Kind regards
Stefan Schwalowsky