softdevice controller logging abilities

RE: softdevice controller logging abilities

jack_woule — Tue, 27 Oct 2026 21:38:28 GMT

Yes, I want to know if you are planning to add more detailed logs printed with CONFIG_BT_CTLR_SDC_LOG. Also, I want to know if this feature will be added to the Long Term Support release 3.4.

Thank you for your support!

RE: softdevice controller logging abilities

Pallavi Patil — Tue, 27 Oct 2026 13:13:46 GMT

Hi,

Can you please confirm if this is correct: You want to know what sort of errors will be logged when kconfig CONFIG_BT_CTLR_SDC_LOG is enabled?

I can check and let you know.

Regards

Pallavi

RE: softdevice controller logging abilities

jack_woule — Tue, 27 Oct 2026 12:08:04 GMT

Thanks a lot for a quick response.

These options seem helpful, but I was asking about another logging capability enabled by CONFIG_BT_CTLR_SDC_LOG option.

Thank you in advance!

RE: softdevice controller logging abilities

Pallavi Patil — Tue, 27 Oct 2026 11:47:07 GMT

Hie,

You can find more details here debug-level logging for the Bluetooth subsystem,

I am mentioning some of them here:

CONFIG_BT_HCI_CORE_LOG_LEVEL_DBG — HCI command/event flow, connection state changes, and errors at the HCI layer (this is likely the most useful for general BLE connection events).
CONFIG_BT_L2CAP_LOG_LEVEL_DBG — L2CAP channel events, connection/disconnection, and errors.
CONFIG_BT_ATT_LOG_LEVEL_DBG — ATT request/response flow, errors, and timeouts.
CONFIG_BT_GATT_LOG_LEVEL_DBG — GATT service discovery, read/write operations, and errors.
CONFIG_BT_SMP_LOG_LEVEL_DBG — Pairing and security events.
CONFIG_MPSL_PIN_DEBUG` Kconfig option to figure out when the radio is used

Regards

Pallavi