Type Alias hardware_alarm_callback_t 

pub type hardware_alarm_callback_t = Option<unsafe extern "C" fn(alarm_num: uint)>;

Callback function type for hardware alarms \ingroup hardware_timer

\param alarm_num the hardware alarm number \sa hardware_alarm_set_callback

Aliased Type

pub enum hardware_alarm_callback_t {
    None,
    Some(unsafe extern "C" fn(u32)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(u32))

Some value of type T.