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Date: Fri, 24 Apr 2009 19:40:04 -0400
From: Sam Leffler <sam@freebsd.org>
Organization: FreeBSD Project
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To: Jin YunYe <yunyejin@gmail.com>
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Cc: freebsd-current@freebsd.org
Subject: Re: Is Channel Estimation or Channel Impulse Response information
 accessible from Atheros HAL
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Jin YunYe wrote:
> Dear all
> 
> I am doing a research project in which I need to retrieve some
> physical layer signal parameters from the wireless adapter/wireless
> router.
> 
> Specifically, I want to get the receiver Channel Estimation
> information or Channel Impulse Response from the receiver hardware.
> Therefore, I would like to ask whether there are any API functions or
> system calls in the HAL that I can use to get these information?
> 
> Thanks a lot!

Nope.  madwifi has some stuff for doing radar detection that might be
useful; feel free to port and submit.  Otherwise the latest chips have
some very useful h/w features that Atheros won't publicly disclose and
which I am no longer permitted to see.

	Sam