QUERY · ISSUE

zephyr: Support for USER_C_MODULES

openby jonnoropened 2025-08-10updated 2025-09-20

enhancementport-zephyr

Description

Support including user modules like on other ports.
Should be via the USER_C_MODULES variable, in the same way as on other cmake-based ports.

Code Size

No impact

Implementation

I intend to implement this feature and would submit a Pull Request if desirable

Code of Conduct

Yes, I agree

CANDIDATE · ISSUE

ESP32: "user C modules" should be able to add components to the build

openby aguavivaopened 2021-11-28updated 2023-12-18

port-esp32

Right now the list of components is hard coded in

https://github.com/micropython/micropython/blob/97a7cc243b028833bdcb8ce0bc19b2bce7545851/ports/esp32/main/CMakeLists.txt#L96

USer C modules should be able to add new components without having to modify the above file

My current use case is a user module that adds support for the esp32-camera

Fixing this will help others extend micropython with minimal modifications in the core files

Assessment

Q Qwen · high

Both issues address the same underlying feature request: enabling USER_C_MODULES support to allow users to add custom C modules/components to the build system. Issue #17878 specifically requests this for the Zephyr port, while issue #8041 requests it for the ESP32 port. They describe the same capability need but for different ports. The Zephyr port issue explicitly mentions implementing this 'in the same way as on other cmake-based ports,' suggesting awareness of similar requests. However, since they target different ports and the implementation details may vary per port, they are related feature requests rather than duplicates. A solution for one port doesn't automatically resolve the other.

Suggested action

Keep both issues open as they represent port-specific feature requests. Consider linking them together and potentially implementing the feature across all cmake-based ports in a coordinated manner. The Zephyr port maintainers may reference the ESP32 implementation when developing their solution.