# rng.rs - source
Source of the Rust file `/home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/embedded-hal-1.0.0-alpha.1/src/blocking/rng.rs`.
Keywords: rust, rustlang, rust-lang

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    //! Blocking hardware random number generator

    /// Blocking read
    pub trait Read {
        /// Error type
        type Error;

        /// Reads enough bytes from hardware random number generator to fill `buffer`
        ///
        /// If any error is encountered then this function immediately returns. The contents of buf are
        /// unspecified in this case.
        ///
        /// If this function returns an error, it is unspecified how many bytes it has read, but it
        /// will never read more than would be necessary to completely fill the buffer.
        fn try_read(&mut self, buffer: &mut [u8]) -> Result<(), Self::Error>;
    }