littlefs Integration

Overview

Use this skill to integrate littlefs safely on embedded block devices. The core task is to make the lfs_config match the real storage geometry and prove mount, format, write, sync, power-loss, and remount behavior.

When To Use

Use this skill when:

• The user wants to add or debug littlefs on MCU internal flash, external SPI/QSPI NOR, NAND-like storage, EEPROM emulation, SD-backed block devices, or RTOS storage.
• The issue involves mount failures, LFS_ERR_CORRUPT, read/write errors, wear leveling, block geometry, formatting, or data loss after reboot.
• The project uses lfs.h, lfs_file_*, lfs_dir_*, or struct lfs_config.

Do not use this skill for generic flash programming failures before the block device driver works. Use mcu-flashing-debug first.

First Questions

Ask for: