From: Mohammed Shafi <shafi.wireless@gmail.com>
To: Fred Matthews <fredmm@hotmail.co.uk>
Cc: linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org,
ath9k-devel@venema.h4ckr.net, ath9k-devel@venema.h4ckr.net,
susinder@qca.qualcomm.com
Subject: Re: [ath9k-devel] Disabling the third antenna for AR9380 in ath9k
Date: Tue, 21 Jun 2011 14:25:36 +0530 [thread overview]
Message-ID: <BANLkTi=B3uZ1qmL6oPyXXQ1n-BCAftND-A@mail.gmail.com> (raw)
In-Reply-To: <BLU158-w185CA0272A5A3CC187AF1E876E0@phx.gbl>
On Tue, Jun 21, 2011 at 2:07 AM, Fred Matthews <fredmm@hotmail.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@lists.ath9k.org
> https://lists.ath9k.org/mailman/listinfo/ath9k-devel
>
>
--
shafi
next prev parent reply other threads:[~2011-06-21 8:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <BLU158-w185CA0272A5A3CC187AF1E876E0@phx.gbl>
2011-06-21 2:35 ` Disabling the third antenna of AR9380 3x3 NIC Fred Matthews
2011-06-21 8:55 ` Mohammed Shafi [this message]
[not found] ` <BLU158-w57EC92C4495F7C9645D7F187500@phx.gbl>
2011-06-22 13:40 ` [ath9k-devel] Disabling the third antenna for AR9380 in ath9k Adrian Chadd
2011-06-22 14:57 ` Mohammed Shafi
2011-06-23 11:56 ` Fred Matthews
2011-06-23 12:16 ` Mohammed Shafi
2011-06-23 12:22 ` Adrian Chadd
2011-06-23 12:42 ` Mohammed Shafi
2011-06-23 13:40 ` Mohammed Shafi
2011-06-23 13:56 ` Adrian Chadd
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='BANLkTi=B3uZ1qmL6oPyXXQ1n-BCAftND-A@mail.gmail.com' \
--to=shafi.wireless@gmail.com \
--cc=ath9k-devel@venema.h4ckr.net \
--cc=fredmm@hotmail.co.uk \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-wireless@vger.kernel.org \
--cc=susinder@qca.qualcomm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®