rust-fatfs/README.md

Rust FAT FS

FAT filesystem library implemented in Rust.

Features:

• read/write/create/remove file,
• enumerate directory children,
• create/remove directory,
• read/write file timestamps (updated automatically if chrono feature is enabled),
• FAT12, FAT16, FAT32 compatibility,
• LFN (Long File Names) extension supported,
• Basic no_std environment support.

Usage

Put this in your Cargo.toml:

[dependencies]
fatfs = "0.2"

Put this in your crate root:

extern crate fatfs;

You can start using library now:

let img_file = File::open("fat.img").unwrap();
let mut buf_stream = fatfs::BufStream::new(img_file);
let fs = fatfs::FileSystem::new(&mut buf_stream, fatfs::FsOptions::new()).unwrap();
let mut root_dir = fs.root_dir();
let mut file = root_dir.create_file("hello.txt").unwrap();
file.write_all(b"Hello World!").unwrap();

See more examples in examples subdirectory.

no_std usage

Put this in your Cargo.toml:

[dependencies]
fatfs = { version = "0.2", features = ["core_io"], default-features = false }

Note: LFN support requires alloc and core_io/collections features and makes use of alloc crate. You may have to provide a memory allocator implementation.

For building in no_std mode nightly Rust version compatible with current core_io crate is required. See date string in core_io dependency version.

License

The MIT license. See LICENSE.txt.