From c27eeeafd95b6e6f7e059f2a69ce2168c439e068 Mon Sep 17 00:00:00 2001
From: Joachim Fasting <joachifm@fastmail.fm>
Date: Sun, 18 Dec 2016 11:47:12 +0100
Subject: [PATCH] brltty service: wait for devices to settle

Otherwise it starts way too early, only to fail and having to restart
until devices are available.  It is less wasteful to simply wait until
there's a reasonable chance of success.  This is consistent with
upstream.
---
 nixos/modules/services/hardware/brltty.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nixos/modules/services/hardware/brltty.nix b/nixos/modules/services/hardware/brltty.nix
index b416ba332222..1266e8f81e5b 100644
--- a/nixos/modules/services/hardware/brltty.nix
+++ b/nixos/modules/services/hardware/brltty.nix
@@ -39,6 +39,8 @@ in {
         ProtectSystem = "full";
         SystemCallArchitectures = "native";
       };
+      wants = [ "systemd-udev-settle.service" ];
+      after = [ "local-fs.target" "systemd-udev-settle.service" ];
       before = [ "sysinit.target" ];
       wantedBy = [ "sysinit.target" ];
     };