Enum PollResult 

#[non_exhaustive]
pub enum PollResult {
    Message(Envelope),
    PinEvent(PinEvent),
    LostMessages(u32),
    StateChange,
}

A return result of Device::handle_status, containing about a single message or event was returned from the kernel.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Message(Envelope)

The device received a Message.

PinEvent(PinEvent)

A monitored pin changed state.

LostMessages(u32)

The message queue was full and a number of messages were received and lost. To avoid this, make sure to poll as frequently as possible.

StateChange

The device state changed. Usually this means the device was configured, unconfigured, or the physical address changed. If the caller has cached any properties like logical address or physical address, these values should be refreshed.

Trait Implementations

impl Clone for PollResult

fn clone(&self) -> PollResult

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PollResult

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for PollResult

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.