hci_uart with Channel Sounding feature enabled

RE: hci_uart with Channel Sounding feature enabled

nychyporuk — Tue, 11 Feb 2025 21:37:36 GMT

That's the part I was missing. Now it works as expected!

RE: hci_uart with Channel Sounding feature enabled

Hung Bui — Tue, 11 Feb 2025 11:49:28 GMT

Hi Oleksandr,
Please provide your project for nRF54L. Please also send the .config file in build\projectname\zephyr that has the full configuration of the project so we can check if CS is supported on the BLE controller.

RE: hci_uart with Channel Sounding feature enabled

ivan iushkov — Tue, 11 Feb 2025 08:36:07 GMT

Probably it happens due to this requirement from Core Specification:

```

If the Host issues this command when the Channel Sounding (Host Support) feature bit
(see [Vol 6] Part B, Section 4.6.33.4) is not set, then the Controller shall return the error
code Command Disallowed (0x0C).

```

I guess Host needs to enable CS (Host Support) feature bit first.

In Zephyr Host it is done here:

https://github.com/nrfconnect/sdk-zephyr/blob/10ab9b6c55c196abec008f3cd0c0d2560a70be1f/subsys/bluetooth/host/hci_core.c#L3670