RE: Offloaded sockets driver on Babblesim nRF54L15

Tom Weber — Wed, 06 Aug 2025 10:07:54 GMT

Hello Alberto, thank you!

I have a created a ticket for this on Github:

RE: Offloaded sockets driver on Babblesim nRF54L15

Alberto Escolar — Mon, 04 Aug 2025 09:48:08 GMT

Hi, in principle "native_sim" drivers are not supported in the nrf*bsim targets.
Quite many of them work, either out of the box, or with some minor dts config changes, due to both targets being based on the native_simulator.
In the case of this nsos driver, as you found out, it uses an interrupt which is not mapped to anything in the nrf bsim targets (nrf*bsim targets have the "real HW" interrupts map).
Would you be so kind as to create a feature request ticket in upstream Zephyr requesting this to work? https://github.com/zephyrproject-rtos/zephyr/issues/new/choose
(Better don't mention NCS there, as this is a plain vanilla Zephyr matter)
I'll take a look there once you do.
In the meanwhile, if you are ok with a quick hack, you can #define NSOS_IRQ to be one of the unused interrupt lines.
https://github.com/BabbleSim/ext_nRF_hw_models/blob/main/src/HW_models/NHW_config.h#L692