esp-idf/components/spiffs/Kconfig

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menu "SPIFFS Configuration"
config SPIFFS_MAX_PARTITIONS
int "Maximum Number of Partitions"
default 3
range 1 10
help
Define maximum number of partitions that can be mounted.
menu "SPIFFS Cache Configuration"
config SPIFFS_CACHE
bool "Enable SPIFFS Cache"
default "y"
help
Enables/disable memory read caching of nucleus file system
operations.
config SPIFFS_CACHE_WR
bool "Enable SPIFFS Write Caching"
default "y"
depends on SPIFFS_CACHE
help
Enables memory write caching for file descriptors in hydrogen.
config SPIFFS_CACHE_STATS
bool "Enable SPIFFS Cache Statistics"
default "n"
depends on SPIFFS_CACHE
help
Enable/disable statistics on caching. Debug/test purpose only.
endmenu
config SPIFFS_PAGE_CHECK
bool "Enable SPIFFS Page Check"
default "y"
help
Always check header of each accessed page to ensure consistent state.
If enabled it will increase number of reads from flash, especially
if cache is disabled.
config SPIFFS_GC_MAX_RUNS
int "Set Maximum GC Runs"
default 10
range 1 10000
help
Define maximum number of GC runs to perform to reach desired free pages.
config SPIFFS_GC_STATS
bool "Enable SPIFFS GC Statistics"
default "n"
help
Enable/disable statistics on gc. Debug/test purpose only.
config SPIFFS_PAGE_SIZE
int "SPIFFS logical page size"
default 256
range 256 1024
help
Logical page size of SPIFFS partition, in bytes. Must be multiple
of flash page size (which is usually 256 bytes).
Larger page sizes reduce overhead when storing large files, and
improve filesystem performance when reading large files.
Smaller page sizes reduce overhead when storing small (< page size)
files.
config SPIFFS_OBJ_NAME_LEN
int "Set SPIFFS Maximum Name Length"
default 32
range 1 256
help
Object name maximum length. Note that this length include the
zero-termination character, meaning maximum string of characters
can at most be SPIFFS_OBJ_NAME_LEN - 1.
SPIFFS_OBJ_NAME_LEN + SPIFFS_META_LENGTH should not exceed
SPIFFS_PAGE_SIZE - 64.
config SPIFFS_FOLLOW_SYMLINKS
bool "Enable symbolic links for image creation"
default "n"
help
If this option is enabled, symbolic links are taken into account
during partition image creation.
config SPIFFS_USE_MAGIC
bool "Enable SPIFFS Filesystem Magic"
default "y"
help
Enable this to have an identifiable spiffs filesystem.
This will look for a magic in all sectors to determine if this
is a valid spiffs system or not at mount time.
config SPIFFS_USE_MAGIC_LENGTH
bool "Enable SPIFFS Filesystem Length Magic"
default "y"
depends on SPIFFS_USE_MAGIC
help
If this option is enabled, the magic will also be dependent
on the length of the filesystem. For example, a filesystem
configured and formatted for 4 megabytes will not be accepted
for mounting with a configuration defining the filesystem as 2 megabytes.
config SPIFFS_META_LENGTH
int "Size of per-file metadata field"
default 4
help
This option sets the number of extra bytes stored in the file header.
These bytes can be used in an application-specific manner.
Set this to at least 4 bytes to enable support for saving file
modification time.
SPIFFS_OBJ_NAME_LEN + SPIFFS_META_LENGTH should not exceed
SPIFFS_PAGE_SIZE - 64.
config SPIFFS_USE_MTIME
bool "Save file modification time"
default "y"
depends on SPIFFS_META_LENGTH >= 4
help
If enabled, then the first 4 bytes of per-file metadata will be used
to store file modification time (mtime), accessible through
stat/fstat functions.
Modification time is updated when the file is opened.
config SPIFFS_MTIME_WIDE_64_BITS
bool "The time field occupies 64 bits in the image instead of 32 bits"
default n
depends on SPIFFS_META_LENGTH >= 8
help
If this option is not set, the time field is 32 bits (up to 2106 year),
otherwise it is 64 bits and make sure it matches SPIFFS_META_LENGTH.
If the chip already has the spiffs image with the time field = 32 bits
then this option cannot be applied in this case.
Erase it first before using this option.
To resolve the Y2K38 problem for the spiffs, use a toolchain with
64-bit time_t support.
menu "Debug Configuration"
config SPIFFS_DBG
bool "Enable general SPIFFS debug"
default "n"
help
Enabling this option will print general debug mesages to the console.
config SPIFFS_API_DBG
bool "Enable SPIFFS API debug"
default "n"
help
Enabling this option will print API debug mesages to the console.
config SPIFFS_GC_DBG
bool "Enable SPIFFS Garbage Cleaner debug"
default "n"
help
Enabling this option will print GC debug mesages to the console.
config SPIFFS_CACHE_DBG
bool "Enable SPIFFS Cache debug"
default "n"
depends on SPIFFS_CACHE
help
Enabling this option will print cache debug mesages to the console.
config SPIFFS_CHECK_DBG
bool "Enable SPIFFS Filesystem Check debug"
default "n"
help
Enabling this option will print Filesystem Check debug mesages
to the console.
config SPIFFS_TEST_VISUALISATION
bool "Enable SPIFFS Filesystem Visualization"
default "n"
help
Enable this option to enable SPIFFS_vis function in the API.
endmenu
endmenu