Type Alias trans_func 

pub type trans_func = Option<unsafe extern "C" fn(*mut esp_transport_item_t) -> i32>;

Aliased Type

pub enum trans_func {
    None,
    Some(unsafe extern "C" fn(*mut esp_transport_item_t) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut esp_transport_item_t) -> i32)

Some value of type T.