From: Till Wollenberg <till.wollenberg@uni-rostock.de>
To: ath9k-devel@lists.ath9k.org
Subject: [ath9k-devel] Chip glitch for RSSI value ?
Date: Thu, 11 Dec 2014 19:19:22 +0100 [thread overview]
Message-ID: <5489E02A.9090908@uni-rostock.de> (raw)
In-Reply-To: <20141211171426.4dd8f20a@fusen>
Hi!
* On 11.12.2014, 17:14 Christophe Pr?votaux wrote:
> Sometimes it seems the ath9k series chips (at least some of them ) do not report RSSI for some frames, is this a known chip glitch ?
I don't know if it is a chip glitch, but I can confirm the observation. I have a
dataset of 2.05 billion frames received with AR9280 cards in monitor mode. I
used ath9k from OpenWRT 12.09 (kernel 3.3.8).
Out of these frames, about 2% do not carry signal/noise information. Also, for
about 0.4% of all frames a signal level of 0dBm or above is reported, which is
unlikely to be correct.
Best regards
Till
--
Dipl.-Inf. Till Wollenberg
University of Rostock, Faculty of CS and EE
Institute of Computer Science
18055 Rostock, Germany
Tel.: +49 (0)381 498-7507
next prev parent reply other threads:[~2014-12-11 18:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-11 16:14 [ath9k-devel] Chip glitch for RSSI value ? Christophe Prévotaux
2014-12-11 18:19 ` Till Wollenberg [this message]
2014-12-11 23:05 ` Adrian Chadd
2014-12-15 16:40 ` Till Wollenberg
2014-12-16 0:59 ` Adrian Chadd
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