From mboxrd@z Thu Jan  1 00:00:00 1970
From: hounos <hounos@uth.gr>
Date: Thu, 12 Sep 2013 14:02:17 +0300
Subject: [ath9k-devel] Ath9k FFT Calculation
Message-ID: <52319F39.1040104@uth.gr>
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To: ath9k-devel@lists.ath9k.org

Hi all,

lately I am studing the Atheros Spectral Scan feature and I am using 
Atheros 9380 and compat-drivers-3.9-rc4-2-su for doing this.

When you trigger a Spectral Scan the file 
/sys/kernel/debug/ieee80211/phy0/ath9k/spectral_scan0 is created.

Is the hardware responsible for something other than collecting 
samples?  Is there any circuit which performs the FFT procedure after 
collecting the samples  or just this process is done by driver? Could 
you give me some more details about the whole FFT procedure?

Thank you in advance

Kostas