CONFIG_FS_LITTLEFS_HEAP_PER_ALLOC_OVERHEAD_SIZE

Size of per-allocation overhead for littleFS heap in bytes

Type: int

Help

In case when total size of littleFS heap is automatically calculated
we need to take into account overhead caused per block allocation.
For the purpose of heap size calculation the size of each cache block
will be increased by this value.
NOTE: when your app fails to open pre-defined number of files, as set
by FS_LITTLEFS_NUM_FILES, try to increase the value.

Direct dependencies

FS_LITTLEFS_FC_HEAP_SIZE <= 0 && FILE_SYSTEM_LITTLEFS && FILE_SYSTEM

(Includes any dependencies from ifs and menus.)

Default

32

Kconfig definition

At <Subsystem>/fs/Kconfig.littlefs:94

Included via Kconfig:8 → Kconfig.zephyr:44 → <Subsystem>/Kconfig:25 → <Subsystem>/fs/Kconfig:61

Menu path: (Top) → Sub Systems and OS Services → File Systems → File system support → LittleFS support

config FS_LITTLEFS_HEAP_PER_ALLOC_OVERHEAD_SIZE
    int "Size of per-allocation overhead for littleFS heap in bytes"
    default 32
    depends on FS_LITTLEFS_FC_HEAP_SIZE <= 0 && FILE_SYSTEM_LITTLEFS && FILE_SYSTEM
    help
      In case when total size of littleFS heap is automatically calculated
      we need to take into account overhead caused per block allocation.
      For the purpose of heap size calculation the size of each cache block
      will be increased by this value.
      NOTE: when your app fails to open pre-defined number of files, as set
      by FS_LITTLEFS_NUM_FILES, try to increase the value.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)