From 78642cc53bd84c2ad529f2175cc50a658d1e52c0 Mon Sep 17 00:00:00 2001
From: Dmitry Sharshakov <d3dx12.xx@gmail.com>
Date: Sat, 20 Jan 2024 11:54:17 +0300
Subject: [PATCH] daemon: udev: allow read access to PHC

Allow users to access the PTP hardware clock

Related to #3217
---
 src/daemon/90-pipewire-aes67-ptp.rules |  6 ++++++
 src/daemon/meson.build                 | 10 ++++++++++
 2 files changed, 16 insertions(+)
 create mode 100644 src/daemon/90-pipewire-aes67-ptp.rules

diff --git a/src/daemon/90-pipewire-aes67-ptp.rules b/src/daemon/90-pipewire-aes67-ptp.rules
new file mode 100644
index 000000000..22f39ffe4
--- /dev/null
+++ b/src/daemon/90-pipewire-aes67-ptp.rules
@@ -0,0 +1,6 @@
+# This file was installed by PipeWire project for its pipewire-aes67
+#
+# This is used to give readonly access to the PTP hardware clock.
+# PipeWire uses this to follow PTP grandmaster time. It should be synced by another service
+#
+KERNEL=="ptp[0-9]*", MODE="0644"
diff --git a/src/daemon/meson.build b/src/daemon/meson.build
index 95f0948ff..079cac5f8 100644
--- a/src/daemon/meson.build
+++ b/src/daemon/meson.build
@@ -162,3 +162,13 @@ subdir('filter-chain')
 if systemd.found()
   subdir('systemd')
 endif
+
+aes67_udevrules = [
+  '90-pipewire-aes67-ptp.rules',
+]
+
+if libudev_dep.found()
+  install_data(aes67_udevrules,
+    install_dir : udevrulesdir,
+  )
+endif