feat: Add via_device for subdevice for homeassistant topology

custom_components/localtuya/coordinator.py

@@ -69,6 +69,7 @@ def __init__(
         self._entry = entry
         self._hass_entry: HassLocalTuyaData = hass.data[DOMAIN][entry.entry_id]
         self._device_config = DeviceConfig(device_config.copy())
+        self.id = self._device_config.id
 
         self._status = {}
         self._interface = None

custom_components/localtuya/entity.py

@@ -19,6 +19,7 @@
     EntityCategory,
     STATE_UNAVAILABLE,
     STATE_UNKNOWN,
+    ATTR_VIA_DEVICE,
 )
 from homeassistant.helpers.device_registry import DeviceInfo
 from homeassistant.helpers.dispatcher import (
@@ -207,15 +208,17 @@ def extra_state_attributes(self):
     def device_info(self) -> DeviceInfo:
         """Return device information for the device registry."""
         model = self._device_config.model
-
-        return DeviceInfo(
+        device_info = DeviceInfo(
             # Serial numbers are unique identifiers within a specific domain
             identifiers={(DOMAIN, f"local_{self._device_config.id}")},
             name=self._device_config.name,
             manufacturer="Tuya",
             model=f"{model} ({self._device_config.id})",
             sw_version=self._device_config.protocol_version,
         )
+        if self._device.is_subdevice:
+            device_info[ATTR_VIA_DEVICE] = (DOMAIN, f"local_{self._device.gateway.id}")
+        return device_info
 
     @property
     def name(self) -> str:
@@ -258,6 +261,11 @@ def device_class(self):
         """Return the class of this device."""
         return self._config.get(CONF_DEVICE_CLASS, self._attr_device_class)
 
+    @property
+    def write_only_device(self):
+        """Return if this device write-only, if the device sent any payload this will be false."""
+        return self._device._status == RESTORE_STATES
+
     def has_config(self, attr) -> bool:
         """Return if a config parameter has a valid value."""
         value = self._config.get(attr, "-1")