CONFIG_FS_FATFS_MAX_LFN¶
Max filename length
Type: int
Help¶
The working buffer occupies (FS_FATFS_MAX_LFN + 1) * 2 bytes and
additional 608 bytes at exFAT enabled.
It should be set 255 to support full featured LFN operations.
Direct dependencies¶
FS_FATFS_LFN && FAT_FILESYSTEM_ELM && FILE_SYSTEM
(Includes any dependencies from ifs and menus.)
Default¶
255
Kconfig definition¶
At subsys/fs/Kconfig.fatfs:89
Included via Kconfig:8 → Kconfig.zephyr:44 → subsys/Kconfig:25 → subsys/fs/Kconfig:60
Menu path: (Top) → Sub Systems and OS Services → File Systems → File system support → ELM FAT file system support → ELM FAT file system settings → Enable long filenames (LFN)
config FS_FATFS_MAX_LFN
int "Max filename length" if FAT_FILESYSTEM_ELM
range 12 255
default 255
depends on FS_FATFS_LFN && FAT_FILESYSTEM_ELM && FILE_SYSTEM
help
The working buffer occupies (FS_FATFS_MAX_LFN + 1) * 2 bytes and
additional 608 bytes at exFAT enabled.
It should be set 255 to support full featured LFN operations.
(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)