From 5820d16419b0e80376d39cdfb58ebf0de1defd10 Mon Sep 17 00:00:00 2001
From: Pascal Vizeli <pascal.vizeli@syshack.ch>
Date: Tue, 3 Jul 2018 18:44:45 +0200
Subject: [PATCH] Fix wrong mount options for devicetree (#548)

---
 hassio/docker/addon.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hassio/docker/addon.py b/hassio/docker/addon.py
index c2801832c..d0f121e14 100644
--- a/hassio/docker/addon.py
+++ b/hassio/docker/addon.py
@@ -217,7 +217,7 @@ class DockerAddon(DockerInterface):
         if self.addon.with_devicetree:
             volumes.update({
                 "/sys/firmware/devicetree": {
-                    'bind': "/sys/firmware/devicetree", 'mode': 'r'
+                    'bind': "/sys/firmware/devicetree", 'mode': 'ro'
                 },
             })