Function saul_class_write

pub unsafe extern "C" fn saul_class_write(
    dest: *mut c_char,
    max_size: size_t,
    class_id: u8,
) -> ssize_t

@brief Write the string representation of the given device class to the given buffer

@param[out] dest destination buffer to write to @param[in] max_size size of the buffer at @p dest @param[in] class_id ID of the device class to write

@return Number of bytes written @retval -EOVERFLOW buffer at @p dest is too small @retval -EINVAL invalid unit in @p unit

@warning The function will never write a terminating zero byte @note If you pass NULL for @p dest, it will return the number of bytes it would write (regardless of @p max_size)