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 ifs and menus.)

Default

Kconfig definition

At subsys/bluetooth/controller/Kconfig:529

Included via Kconfig:10Kconfig.zephyr:44subsys/Kconfig:8subsys/bluetooth/Kconfig:155

Menu path: (Top) → Bluetooth → Bluetooth Controller → Advanced features

config BT_CTLR_LOW_LAT
    bool "Low latency non-negotiating event preemption" if BT_CTLR_ADVANCED_FEATURES
    default y if SOC_SERIES_NRF51X
    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.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)