librenms-librenms/html/includes/graphs/accesspoints/channel.inc.php

<?php

$rrd_filename = $config['rrd_dir'].'/'.$device['hostname'].'/'.safename("arubaap-$ap[name].$ap[radio_number].rrd");

$rrd_list[0]['filename'] = $rrd_filename;
$rrd_list[0]['descr']    = 'Channel';
$rrd_list[0]['ds']       = 'channel';

$unit_text = 'Channel';

$units       = '';
$total_units = '';
$colours     = 'mixed';

$scale_min = '0';

$nototal = 1;

if ($rrd_list) {
    include 'includes/graphs/generic_multi_line.inc.php';
}