aredn/files/usr/local/bin/wifi-onbootchains

#!/usr/bin/perl -w -I/www/cgi-bin
=for commnet

  Part of AREDN -- Used for creating Amateur Radio Emergency Data Networks
  Copyright (C) 2015 Conrad Lara
   See Contributors file for additional contributors

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation version 3 of the License.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.

=cut

use perlfunc;

if (wifi_useschains()){

    $wifi_rxant = `uci -q get wireless.\@wifi-device[0].rxchain`;
    $wifi_txant = `uci -q get wireless.\@wifi-device[0].txchain`;
    chomp($wifi_rxant);
    chomp($wifi_txant);

    if ( $wifi_rxant ne "" ) {
        `echo $wifi_rxant > /sys/kernel/debug/ieee80211/phy0/ath9k/rx_chainmask`;
    }

    if ( $wifi_txant ne "" ) {
        `echo $wifi_txant > /sys/kernel/debug/ieee80211/phy0/ath9k/tx_chainmask`;
    }
}