Reviewed-on: M-Labs/artiq-zynq#138 Co-authored-by: mwojcik <mw@m-labs.hk> Co-committed-by: mwojcik <mw@m-labs.hk>
* based on https://github.com/jethrogb/rust-core_io but could not get the packaging scripts to work and the repos is unmaintained anyway, so just copied the result * more features and more up-to-date * compatible with the fatfs crate
