QUERY · ISSUE

OpenMV Feature: ROMFS IOCTL Documentation and Debug

openby kwagyemanopened 2026-03-21updated 2026-03-21

enhancement

Description

Ensure ROMFS write/erase from MicroPython for STM32, IMIXRT, and ALIF works.
Add documentation about ROMFS, ioctl API, etc.
Make ROMFS bootable?

Code Size

No response

Implementation

I hope the MicroPython maintainers or community will implement this feature

Code of Conduct

Yes, I agree

CANDIDATE · PULL REQUEST

ports: make naming of ROMFS partition config variables consistent

mergedby dpgeorgeopened 2025-03-11updated 2025-03-13

port-esp8266port-stm32

Summary

Change ROMFS partition configuration variables to be more consistent across the ports, and use index 0 as the starting partition number (instead of index 1).

Reason:

vfs.rom_ioctl() numbers the partitions starting from 0
mpremote romfs -p <partition id> numbers the partitions starting from 0

Testing

CI should test this, building the boards that enable ROMFS on stm32 and esp8266.

Assessment

Q Qwen · medium

The query (Issue #18962) requests ROMFS write/erase functionality, documentation, and investigation into bootable ROMFS across multiple ports. The candidate (PR #16903) is a refactoring PR that only standardizes ROMFS partition configuration variable naming and indexing (0-based vs 1-based). While both items concern ROMFS and affect the same ports (stm32, etc.), the PR does not implement write/erase operations, add documentation, or address bootable ROMFS capability. It's a related code quality improvement but does not resolve the feature request.

Suggested action

Keep both items open. The PR addresses code consistency but does not implement the requested ROMFS write/erase feature or documentation. The issue should remain open for the actual feature implementation.