Constant latency hotfix module

Enable the constant latency hotfix module to use a device configuration with constant latency interrupts. This reduces the interrupt propagation time, but increases the power consumption.

Module events

Source Module

Input Event

This Module

Output Event

Sink Module

Power manager module



Source modules for module_state_event


Bluetooth LE advertising module


Buttons module

HID forward module

Motion module

Power manager module

Wheel module


See the Overview: Firmware architecture for more information about the event-based communication in the nRF Desktop application and about how to read this table.


Enable the module with the CONFIG_DESKTOP_CONSTLAT_ENABLE option.

You can set the CONFIG_DESKTOP_CONSTLAT_DISABLE_ON_STANDBY to disable the constant latency interrupts when the device goes to the low power mode (on power_down_event). The constant latency interrupts are reenabled on wake_up_event.