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-rw-r--r--libs/sys/luasrc/sys.lua10
1 files changed, 7 insertions, 3 deletions
diff --git a/libs/sys/luasrc/sys.lua b/libs/sys/luasrc/sys.lua
index 817217b90..1cf8b9f18 100644
--- a/libs/sys/luasrc/sys.lua
+++ b/libs/sys/luasrc/sys.lua
@@ -722,10 +722,14 @@ end
-- @param iface Wireless interface (optional)
-- @return Table of available channels
function wifi.channels(iface)
- local t = iwinfo.type(iface or "")
+ local stat, iwinfo = pcall(require, "iwinfo")
local cns
- if iface and t and iwinfo[t] then
- cns = iwinfo[t].freqlist(iface)
+
+ if stat then
+ local t = iwinfo.type(iface or "")
+ if iface and t and iwinfo[t] then
+ cns = iwinfo[t].freqlist(iface)
+ end
end
if not cns or #cns == 0 then