Bridged Device Basic Information cluster is not displayed properly in Apple HomeKit (CON-1418)

[jzwyssig]

This issue is likely not related to esp-matter or connectedhomeip and was already discussed in the past (see #415). However, I would appreciate it if someone could confirm this issue.

On iOS 18.1, the Bridged Device Basic Information Cluster is not displayed correctly in Apple HomeKit. While the basic information is correctly recognized on the bridge itself, the bridged devices in Apple HomeKit always show "Unknown."

Using chip-tool, I am able to read the bridged device's basic information successfully, and everything is displayed correctly in Google Home as well. I also tried adding the Basic Information Cluster in addition to the Bridged Device Basic Information Cluster for each bridged device, thinking that HomeKit might be referencing the wrong cluster, but this did not resolve the issue either.

[jonsmirl]

there are two different clusters: BasicInfo and BridgedBasicInfo, you are reading the BasicInfo one with chip-tool. If you click on Bidge-> it is visible in Apple Home. To see what you are looking for, you need to add these attributes

        bridged_device_basic_information::attribute::create_vendor_name(cluster, LOWPAN_VENDOR_NAME, strlen(LOWPAN_VENDOR_NAME));
        bridged_device_basic_information::attribute::create_vendor_id(cluster, LOWPAN_VENDOR_ID);
        bridged_device_basic_information::attribute::create_serial_number(cluster, "12345ABCDEF", strlen("12345ABCDEF"));
        bridged_device_basic_information::attribute::create_reachable(cluster, true);

[jzwyssig]

Thanks, @jonsmirl, for the fast response. However, this is exactly what I did. Each bridged device has the Bridged Device Basic Information cluster, and I can confirm that I am able to read all attributes on every endpoint using chip-tool. Additionally, the Bridged Device Basic Information cluster is displayed correctly in Google Home. Only in in Apple Home it shows "Unknown".

The "normal" Basic Information cluster is working just fine. If I tap on the bridge in Apple Home, the data is displayed correctly.

For example:

• basicinformation read vendor-name 0x1 0 : Works with chip-tool, Apple Home, Google Home
• bridgeddevicebasicinformation read vendor-name 0x1 2: Works with chip-tool and in Google Home but Apple Home shows "Unknown".

[jonsmirl]

That works for me, I see all of the fields I set in Apple Home. I am on IOS 17.7 on iPad.

[jonsmirl]

Did you try removing the device and recommissioning it on Apple Home? Apple might only read this info once and not expect it to change.

[jzwyssig]

Thank you for the confirmation. I am currently using iOS 18.1, and I believe this feature worked in the past. That’s why I’m curious if the issue might be related to iOS 18.1. I’ve already reset the device and re-paired it multiple times, but unfortunately, it still doesn’t work.