core/homeassistant/components/velbus/entity.py

38 lines
1.2 KiB
Python

"""Support for Velbus devices."""
from __future__ import annotations
from velbusaio.channels import Channel as VelbusChannel
from homeassistant.helpers.entity import DeviceInfo, Entity
from .const import DOMAIN
class VelbusEntity(Entity):
"""Representation of a Velbus entity."""
_attr_should_poll: bool = False
def __init__(self, channel: VelbusChannel) -> None:
"""Initialize a Velbus entity."""
self._channel = channel
self._attr_name = channel.get_name()
self._attr_device_info = DeviceInfo(
identifiers={
(DOMAIN, str(channel.get_module_address())),
},
manufacturer="Velleman",
model=channel.get_module_type_name(),
name=channel.get_full_name(),
sw_version=channel.get_module_sw_version(),
)
serial = channel.get_module_serial() or str(channel.get_module_address())
self._attr_unique_id = f"{serial}-{channel.get_channel_number()}"
async def async_added_to_hass(self) -> None:
"""Add listener for state changes."""
self._channel.on_status_update(self._on_update)
async def _on_update(self) -> None:
self.async_write_ha_state()