CONFIG_BT_CTLR_LOW_LAT

Low latency non-negotiating event preemption

Type: bool

Help

Use low latency non-negotiating event preemption. This reduces Radio ISR latencies by the controller event scheduling framework. Consequently, this reduces on-air radio utilization due to redundant radio state switches.

Direct dependencies

BT_LL_SW_SPLIT && BT_CTLR && BT_HCI && BT

(Includes any dependencies from if’s and menus.)

Defaults

Kconfig definition

At subsys/bluetooth/controller/Kconfig:507

Included via Kconfig:10Kconfig.zephyr:39subsys/Kconfig:8subsys/bluetooth/Kconfig:145

Menu path: (top menu) → Bluetooth → Bluetooth support → Bluetooth Controller → Advanced features

config BT_CTLR_LOW_LAT
    bool
    prompt "Low latency non-negotiating event preemption" if BT_LL_SW_SPLIT && BT_CTLR && BT_HCI && BT && BT_CTLR_ADVANCED_FEATURES
    default "y" if SOC_SERIES_NRF51X && BT_LL_SW_SPLIT && BT_CTLR && BT_HCI && BT
    depends on BT_LL_SW_SPLIT && BT_CTLR && BT_HCI && BT
    help
      Use low latency non-negotiating event preemption. This reduces
      Radio ISR latencies by the controller event scheduling framework.
      Consequently, this reduces on-air radio utilization due to redundant
      radio state switches.

(Definitions include propagated dependencies, including from if’s and menus.)