Function mmal_sys::mmal_4cc_to_string

pub unsafe extern "C" fn mmal_4cc_to_string(
    buf: *mut c_char, 
    len: usize, 
    fourcc: u32
) -> *mut c_char

Convert a 4cc into a string.

@param buf Destination for result @param len Size of result buffer @param fourcc 4cc to be converted @return converted string (buf)