1 files changed, 50 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/services/hardware/brltty.nix b/nixpkgs/nixos/modules/services/hardware/brltty.nix
new file mode 100644
index 000000000000..1266e8f81e5b
--- /dev/null
+++ b/nixpkgs/nixos/modules/services/hardware/brltty.nix
@@ -0,0 +1,50 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.brltty;
+
+in {
+
+  options = {
+
+    services.brltty.enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Whether to enable the BRLTTY daemon.";
+    };
+
+  };
+
+  config = mkIf cfg.enable {
+
+    systemd.services.brltty = {
+      description = "Braille Device Support";
+      unitConfig = {
+        Documentation = "http://mielke.cc/brltty/";
+        DefaultDependencies = "no";
+        RequiresMountsFor = "${pkgs.brltty}/var/lib/brltty";
+      };
+      serviceConfig = {
+        ExecStart = "${pkgs.brltty}/bin/brltty --no-daemon";
+        Type = "notify";
+        TimeoutStartSec = 5;
+        TimeoutStopSec = 10;
+        Restart = "always";
+        RestartSec = 30;
+        Nice = -10;
+        OOMScoreAdjust = -900;
+        ProtectHome = "read-only";
+        ProtectSystem = "full";
+        SystemCallArchitectures = "native";
+      };
+      wants = [ "systemd-udev-settle.service" ];
+      after = [ "local-fs.target" "systemd-udev-settle.service" ];
+      before = [ "sysinit.target" ];
+      wantedBy = [ "sysinit.target" ];
+    };
+
+  };
+
+}