Function iio_strerror 

pub unsafe extern "C" fn iio_strerror(
    err: c_int,
    dst: *mut c_char,
    len: usize,
)

@brief Get a string description of an error code @param err The error code @param dst A pointer to the memory area where the NULL-terminated string corresponding to the error message will be stored @param len The available length of the memory area, in bytes