#[repr(C)]
pub struct esp_vfs_fat_mount_config_t { pub format_if_mount_failed: bool, pub max_files: c_int, pub allocation_unit_size: usize, }
Expand description

@brief Configuration arguments for esp_vfs_fat_sdmmc_mount and esp_vfs_fat_spiflash_mount functions

Fields

format_if_mount_failed: bool

If FAT partition can not be mounted, and this parameter is true, create partition table and format the filesystem.

max_files: c_int

< Max number of open files

allocation_unit_size: usize

If format_if_mount_failed is set, and mount fails, format the card with given allocation unit size. Must be a power of 2, between sector size and 128 * sector size. For SD cards, sector size is always 512 bytes. For wear_levelling, sector size is determined by CONFIG_WL_SECTOR_SIZE option.

Using larger allocation unit size will result in higher read/write performance and higher overhead when storing small files.

Setting this field to 0 will result in allocation unit set to the sector size.

Trait Implementations

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