Enum PublishEvent 

pub enum PublishEvent {
    Battery(BatteryStatus),
    Time(Option<u32>),
    Gnss(u32, GnssSnapshot),
}

A device-initiated property publication, yielded by DeviceEnv::publish_event.

The driver has exactly one select arm for everything the board pushes unasked, because a hook per property would need one &mut self borrow per arm and no two of those can coexist. One arm, one enum, and the board decides internally which of its sources woke it.

Variants

Battery(BatteryStatus)

An unsolicited PROP_BATTERY.

Time(Option<u32>)

An unsolicited PROP_TIME; None is a clock that has gone back to not knowing what time it is.

Gnss(u32, GnssSnapshot)

An unsolicited positioning property, named by its key, encoded from the accompanying snapshot.