From e768fce754dab3e95b47cdcd27ecabd2e2d126a0 Mon Sep 17 00:00:00 2001
From: Louis Tim Larsen <louis@louis.dk>
Date: Mon, 3 Aug 2020 21:43:01 +0200
Subject: [PATCH] libhdhomerun: add comment about UDP firewall rule

PR #94620
---
 pkgs/development/libraries/libhdhomerun/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/libraries/libhdhomerun/default.nix b/pkgs/development/libraries/libhdhomerun/default.nix
index cdc9e4270b51..73d53bdccd73 100644
--- a/pkgs/development/libraries/libhdhomerun/default.nix
+++ b/pkgs/development/libraries/libhdhomerun/default.nix
@@ -1,5 +1,9 @@
 { stdenv, fetchurl }:
 
+# libhdhomerun requires UDP port 65001 to be open in order to detect and communicate with tuners.
+# If your firewall is enabled, make sure to have something like:
+#   networking.firewall.allowedUDPPorts = [ 65001 ];
+
 stdenv.mkDerivation rec {
   pname = "libhdhomerun";
   version = "20200521";