From ab8953024be9f6f7d5f98886894917a8a8fdd452 Mon Sep 17 00:00:00 2001
From: Jouke Witteveen <j.witteveen@gmail.com>
Date: Mon, 21 Oct 2013 17:10:23 +0200
Subject: Allow limiting the frequencies to scan (FS#37032)

This is especially useful to enforce connecting in the 5 GHz band.
---
 docs/netctl.profile.5.txt | 4 ++++
 src/lib/wpa               | 1 +
 2 files changed, 5 insertions(+)

diff --git a/docs/netctl.profile.5.txt b/docs/netctl.profile.5.txt
index 17f0537..0eac7c3 100644
--- a/docs/netctl.profile.5.txt
+++ b/docs/netctl.profile.5.txt
@@ -235,6 +235,10 @@ of the `wireless' type:
 'AdHoc='::
     Whether or not to use ad-hoc mode. Defaults to `++no++'.
 
+'ScanFrequencies='::
+    A space-separated list of frequencies in MHz to scan when searching
+    for the network. Defaults to all available frequencies.
+
 'Priority='::
     Priority group for the network. In case of automatic profile
     selection, the matched network with the highest priority will be
diff --git a/src/lib/wpa b/src/lib/wpa
index ff6d9ab..dea95d5 100644
--- a/src/lib/wpa
+++ b/src/lib/wpa
@@ -247,6 +247,7 @@ wpa_make_config_block() {
     [[ $AP ]] && echo "bssid=${AP,,}"
     is_yes "${Hidden:-no}" && echo "scan_ssid=1"
     is_yes "${AdHoc:-no}" && echo "mode=1"
+    [[ $ScanFrequencies ]] && echo "scan_freq=$ScanFrequencies"
     [[ $Priority ]] && echo "priority=$Priority"
 }
 
-- 
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