From 59e1603e15bffd3b493014be6d6b11efb65a9239 Mon Sep 17 00:00:00 2001
From: Teemu R <tpr@iki.fi>
Date: Thu, 12 Aug 2021 19:50:57 +0200
Subject: [PATCH] airpurifier_miot: return OperationMode.Unknown if mode is
 unknown (#1111)

---
 miio/airpurifier_miot.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/miio/airpurifier_miot.py b/miio/airpurifier_miot.py
index 9e4442a39..1f082fa0f 100644
--- a/miio/airpurifier_miot.py
+++ b/miio/airpurifier_miot.py
@@ -73,6 +73,7 @@ class AirPurifierMiotException(DeviceException):
 
 
 class OperationMode(enum.Enum):
+    Unknown = -1
     Auto = 0
     Silent = 1
     Favorite = 2
@@ -110,7 +111,12 @@ def aqi(self) -> int:
     @property
     def mode(self) -> OperationMode:
         """Current operation mode."""
-        return OperationMode(self.data["mode"])
+        mode = self.data["mode"]
+        try:
+            return OperationMode(mode)
+        except ValueError:
+            _LOGGER.debug("Unknown mode: %s", mode)
+            return OperationMode.Unknown
 
     @property
     def buzzer(self) -> Optional[bool]: