publish device manufacturer, model, hw_version

src/sensors.py

@@ -19,9 +19,31 @@ class Device:
     def __init__(self, name, device_id, mqtt_settings: ha_mqtt_discoverable.Settings.MQTT):
         self.name = name
         self.device_id = device_id
-        self.mqtt_device = ha_mqtt_discoverable.DeviceInfo(name=name, identifiers=device_id)
         self.mqtt_settings = mqtt_settings
 
+        device_manufacturer = self._read_device_manufacturer()
+        device_model = self._read_device_model()
+        device_hw_version = self._read_device_hw_version()
+
+        self.mqtt_device = ha_mqtt_discoverable.DeviceInfo(
+            name=name,
+            identifiers=device_id,
+            manufacturer=device_manufacturer,
+            model=device_model,
+            hw_version=device_hw_version)
+
+    def _read_device_manufacturer(self) -> str:
+        with open('/sys/devices/virtual/dmi/id/chassis_vendor') as f:
+            return f.readline()
+
+    def _read_device_model(self) -> str:
+        with open('/sys/devices/virtual/dmi/id/product_family') as f:
+            return f.readline()
+
+    def _read_device_hw_version(self) -> str:
+        with open('/sys/devices/virtual/dmi/id/product_name') as f:
+            return f.readline()
+
     def get_device_id(self):
         return self.device_id