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Date: Tue, 21 Jun 2011 14:25:36 +0530 From: Mohammed Shafi <shafi.wireless@...il.com> To: Fred Matthews <fredmm@...mail.co.uk> Cc: linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org, ath9k-devel@...ema.h4ckr.net, ath9k-devel@...ts.ath9k.org, susinder@....qualcomm.com Subject: Re: [ath9k-devel] Disabling the third antenna for AR9380 in ath9k On Tue, Jun 21, 2011 at 2:07 AM, Fred Matthews <fredmm@...mail.co.uk> wrote: > Hi all, > I am installing the AR9380 NIC on laptops, but some only have two UFL > connectors, and thus I was wondering if using only two of the UFL antenna > ports will have any negative effect or difference than installing a 2x2 NIC > (AR9280 for example which has only 2 ports anyway). Please kindly explain > with references if possible. > Also for example is there anyway to disable transmission on the third UFL > port (antenna) from ath9k or otherwise. > Thank you all very much you can change the tx/rx chainmask for 3x3 AR9380 to disable transmission on the third antenna cd /sys/kernel/debug/ieee80211/phy0/ath9k# echo 0x3 > tx_chainmask cd /sys/kernel/debug/ieee80211/phy0/ath9k# echo 0x3 > rx_chainmask after this, ideally it should operate as 2x2 device as per Susinders comments. but if you got AR9280 please try to use that if 2 antenna is the constraint. > _______________________________________________ > ath9k-devel mailing list > ath9k-devel@...ts.ath9k.org > https://lists.ath9k.org/mailman/listinfo/ath9k-devel > > -- shafi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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