message: FAPL: impl Default for DirectDriver
diff: @@ -456,6 +456,13 @@ pub struct DirectDriver {
  pub cbuf_size: usize,
  }
  +#[cfg(h5_have_direct)]
  +impl Default for DirectDriver {
  + fn default() -> Self {
  + Self { alignment: 4096, block_size: 4096, cbuf_size: 16 * 1024 * 1024 }
  + }
  +}
  +
  #[derive(Clone, Debug)]
  pub enum FileDriver {
  Sec2,
  