Exposing MAC addess as device connection

[nijel]

Home Assistant allows merging devices from multiple integrations. One of the ways to do that is via connections and MAC address. Would it be possible to expose this from tuya-local?

It would then allow other integrations such as Unifi to add networking info to the device (such as presence or bandwidth usage).

On the Home Assistant side, all what is needed is to add CONNECTION_NETWORK_MAC connection to the device registry like shown in https://developers.home-assistant.io/docs/device_registry_index/#manual-registration.

[make-all]

The documentation you link to is for registering devices with no connected entities. Such devices are not supported by this integration and are not likely to be in future. Mac address is a detail specific to lower levels of the TCP/IP stack that is not generally available for integrations that follow the Home Assistant guidelines and use third party libraries to implement network protocols.

[nijel]

The documentation link is the first mention of this I could find, there are probably better places. It looks like this in the real integration: https://github.com/home-assistant/core/blob/eb81a4204e1ec32d15519524f93d9dc726298c3e/homeassistant/components/shelly/entity.py#L320-L322

Quickly going through existing integrations that expose this, indeed the MAC address is provided by the third-party library doing the device access. For example, with Shelly, it matches device unique ID.

I don't know Tuya stack enough to know whether it's available somewhere or not, but it would be useful to include in Home Assistant.