Struct GpioProxy 

pub struct GpioProxy { /* private fields */ }

Implementations

impl GpioProxy

pub fn new(channel: AsyncChannel) -> Self

Create a new Proxy for fuchsia.hardware.gpio/Gpio.

pub fn take_event_stream(&self) -> GpioEventStream

Get a Stream of events from the remote end of the protocol.

Panics

Panics if the event stream was already taken.

pub fn read( &self, ) -> QueryResponseFut<GpioReadResult, DefaultFuchsiaResourceDialect>

Reads the current value of a GPIO, returning true for a high voltage and false for a low voltage.

pub fn set_buffer_mode( &self, mode: BufferMode, ) -> QueryResponseFut<GpioSetBufferModeResult, DefaultFuchsiaResourceDialect>

Configures the output buffer as per mode.

pub fn get_interrupt( &self, options: InterruptOptions, ) -> QueryResponseFut<GpioGetInterruptResult, DefaultFuchsiaResourceDialect>

Gets an interrupt object pertaining to a particular GPIO pin. Only one interrupt may be outstanding per pin, and it must be released by calling ReleaseInterrupt() before the next call to GetInterrupt() will succeed. The interrupt is unmasked prior to being returned to the caller.

Returns ZX_ERR_ALREADY_EXISTS if GetInterrupt() has already been called without a subsequent call to ReleaseInterrupt(), ZX_ERR_INVALID_ARGS if options is invalid, or ZX_ERR_ACCESS_DENIED if another client has the interrupt.

pub fn configure_interrupt( &self, config: &InterruptConfiguration, ) -> QueryResponseFut<GpioConfigureInterruptResult, DefaultFuchsiaResourceDialect>

Configures the polarity of an interrupt and whether it is edge- or level-triggered. Only the client with the interrupt can call ConfigureInterrupt(), unless no client has an interrupt.

Returns ZX_ERR_INVALID_ARGS if no fields are set in config, or ZX_ERR_ACCESS_DENIED if another client has the interrupt.

pub fn release_interrupt( &self, ) -> QueryResponseFut<GpioReleaseInterruptResult, DefaultFuchsiaResourceDialect>

Releases the interrupt, allowing GetInterrupt() to be called again or by another client. A client’s interrupt is automatically released when it disconnects from the server. The interrupt is masked upon release.

Returns ZX_ERR_NOT_FOUND if the interrupt has already been released, or if GetInterrupt() has not been called. Returns ZX_ERR_ACCESS_DENIED if another client has the interrupt.

Trait Implementations

impl Clone for GpioProxy

fn clone(&self) -> GpioProxy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GpioProxy

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

Formats the value using the given formatter.

impl GpioProxyInterface for GpioProxy

type ReadResponseFut = QueryResponseFut<Result<bool, i32>>

type SetBufferModeResponseFut = QueryResponseFut<Result<(), i32>>

type GetInterruptResponseFut = QueryResponseFut<Result<Interrupt, i32>>

type ConfigureInterruptResponseFut = QueryResponseFut<Result<(), i32>>

type ReleaseInterruptResponseFut = QueryResponseFut<Result<(), i32>>

fn read(&self) -> Self::ReadResponseFut

fn set_buffer_mode(&self, mode: BufferMode) -> Self::SetBufferModeResponseFut

fn get_interrupt( &self, options: InterruptOptions, ) -> Self::GetInterruptResponseFut

fn configure_interrupt( &self, config: &InterruptConfiguration, ) -> Self::ConfigureInterruptResponseFut

fn release_interrupt(&self) -> Self::ReleaseInterruptResponseFut

impl Proxy for GpioProxy

type Protocol = GpioMarker

The protocol which this Proxy controls.

fn from_channel(inner: AsyncChannel) -> Self

Create a proxy over the given channel.

fn into_channel(self) -> Result<AsyncChannel, Self>

Attempt to convert the proxy back into a channel.

fn as_channel(&self) -> &AsyncChannel

Get a reference to the proxy’s underlying channel.

fn into_client_end(self) -> Result<ClientEnd<Self::Protocol>, Self>

Attempt to convert the proxy back into a client end.

fn is_closed(&self) -> bool

Returns true if the proxy has received the PEER_CLOSED signal.

fn on_closed(&self) -> OnSignals<'_, Unowned<'_, NullableHandle>>

Returns a future that completes when the proxy receives the PEER_CLOSED signal.