From b6a054c588b42a3d5744403f40e420fd7c3a2d11 Mon Sep 17 00:00:00 2001
From: Daniel Barlow <dan@telent.net>
Date: Sun, 14 Apr 2024 21:59:23 +0100
Subject: [PATCH] add mdevd as module

following the upstream example, it republishes uevent messages
using multicast group 4 instead of group 2 as used by udev.
---
 modules/all-modules.nix |  1 +
 modules/mdevd.nix       | 17 +++++++++++++++++
 2 files changed, 18 insertions(+)
 create mode 100644 modules/mdevd.nix

diff --git a/modules/all-modules.nix b/modules/all-modules.nix
index 6b432ce..9a0bf8d 100644
--- a/modules/all-modules.nix
+++ b/modules/all-modules.nix
@@ -19,6 +19,7 @@
    ./kernel
    ./outputs/kexecboot.nix
    ./mount
+   ./mdevd.nix
    ./network
    ./ntp
    ./outputs.nix
diff --git a/modules/mdevd.nix b/modules/mdevd.nix
new file mode 100644
index 0000000..43cf063
--- /dev/null
+++ b/modules/mdevd.nix
@@ -0,0 +1,17 @@
+{ config, pkgs, lib, ...} :
+let inherit (pkgs.liminix.services) oneshot longrun bundle target;
+in {
+  config = {
+    services = rec {
+      mdevd = longrun {
+        name = "mdevd";
+        notification-fd = 3;
+        run = "${pkgs.mdevd}/bin/mdevd -D 3 -b 200000 -O4";
+      };
+      mdevd-coldplug = oneshot {
+        name ="mdev-coldplug";
+        up = "${pkgs.mdevd}/bin/mdevd-coldplug";
+      };
+    };
+  };
+}