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0.4.0 Feb 7, 2023
0.3.2 Sep 26, 2021
0.3.1 Jun 10, 2021
0.2.2 Mar 19, 2021
0.1.0-alpha.0 Dec 15, 2019

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Used in 5 crates (3 directly)

Apache-2.0 OR MIT



Idiomatic Rust API for littlefs

What is this?

Idiomatic Rust API for the littlefs microcontroller filesystem by Chris Haster.

Number 2 refers to the on-disk format version, supporting inline files, custom attributes and dynamic wear-leveling.

We follow std::fs as much as reasonable.

The low-level bindings are provided by the littlefs2-sys library.

Upstream release: v2.1.4


This library is no_std compatible, but there are two gotchas.

  • The dev-dependency memchr of littlefs2-sys has its std features activated. To prevent this, upgrade to at least Rust 1.51 and add resolver = "2" in the consuming code's [package] section. This will be the default in Rust 2021 edition.

  • At link time, lfs.c has a dependency on strcpy. When not linking to a libc with this symbol, activate the c-stubs feature to provide an implementation.


littlefs is licensed under BSD-3-Clause. This API for littlefs is licensed under either of Apache License, Version 2.0 or MIT License at your option. Previous bindings exist in the rust-littlefs repository, also dual-licensed under Apache-2.0 and MIT.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.


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