Struct DeviceSynchronousProxy 

pub struct DeviceSynchronousProxy { /* private fields */ }

Implementations

impl DeviceSynchronousProxy

pub fn new(channel: Channel) -> Self

pub fn into_channel(self) -> Channel

pub fn wait_for_event( &self, deadline: MonotonicInstant, ) -> Result<DeviceEvent, Error>

Waits until an event arrives and returns it. It is safe for other threads to make concurrent requests while waiting for an event.

pub fn transmit( &self, buffer: &SharedVmoBuffer, ___deadline: MonotonicInstant, ) -> Result<SharedVmoIoTransmitResult, Error>

Sends the data in buffer to the device.

pub fn receive( &self, buffer: &SharedVmoBuffer, ___deadline: MonotonicInstant, ) -> Result<SharedVmoIoReceiveResult, Error>

Receives data from the device into buffer.

pub fn exchange( &self, tx_buffer: &SharedVmoBuffer, rx_buffer: &SharedVmoBuffer, ___deadline: MonotonicInstant, ) -> Result<SharedVmoIoExchangeResult, Error>

Simultaneously transmits and receives data. The size fields of tx_buffer and rx_buffer must be the same.

pub fn register_vmo( &self, vmo_id: u32, vmo: Range, rights: SharedVmoRight, ___deadline: MonotonicInstant, ) -> Result<SharedVmoRegisterRegisterVmoResult, Error>

Registers a VMO and transfers ownership to the driver. vmo_id: The ID chosen by the client that will be used in operations on this VMO. vmo: The handle, offset, and size of this VMO. IO operations on this VMO will be relative to the offset and size specified here. rights: A bit field of SharedVmoRight values indicating how this VMO may be used. Callers should assume that the driver will map and/or pin the VMO using these rights.

pub fn unregister_vmo( &self, vmo_id: u32, ___deadline: MonotonicInstant, ) -> Result<SharedVmoRegisterUnregisterVmoResult, Error>

Unmaps and/or unpins the VMO and returns the handle to the caller.

pub fn transmit_vector( &self, data: &[u8], ___deadline: MonotonicInstant, ) -> Result<i32, Error>

Half-duplex transmit data to a SPI device; always transmits the entire buffer on success.

pub fn receive_vector( &self, size: u32, ___deadline: MonotonicInstant, ) -> Result<(i32, Vec<u8>), Error>

Half-duplex receive data from a SPI device; always reads the full size requested.

pub fn exchange_vector( &self, txdata: &[u8], ___deadline: MonotonicInstant, ) -> Result<(i32, Vec<u8>), Error>

Full-duplex SPI transaction. Received data will exactly equal the length of the transmit buffer.

pub fn can_assert_cs( &self, ___deadline: MonotonicInstant, ) -> Result<bool, Error>

Returns true if the device can call |AssertCs()| and |DeassertCs()|.

pub fn assert_cs(&self, ___deadline: MonotonicInstant) -> Result<i32, Error>

Assert CS for this device. Returns ZX_ERR_NOT_SUPPORTED if there is more than one device on the bus.

pub fn deassert_cs(&self, ___deadline: MonotonicInstant) -> Result<i32, Error>

Deassert CS for this device. Returns ZX_ERR_BAD_STATE if CS is already deasserted. Returns ZX_ERR_NOT_SUPPORTED if there is more than one device on the bus.

Trait Implementations

impl Debug for DeviceSynchronousProxy

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

Formats the value using the given formatter.

impl From<Channel> for DeviceSynchronousProxy

Available on Fuchsia only.

fn from(value: Channel) -> Self

Converts to this type from the input type.

impl From<DeviceSynchronousProxy> for NullableHandle

Available on Fuchsia only.

fn from(value: DeviceSynchronousProxy) -> Self

Converts to this type from the input type.

impl FromClient for DeviceSynchronousProxy

Available on Fuchsia only.

type Protocol = DeviceMarker

The protocol.

fn from_client(value: ClientEnd<DeviceMarker>) -> Self

Converts from a client.

impl SynchronousProxy for DeviceSynchronousProxy

Available on Fuchsia only.

type Proxy = DeviceProxy

The async proxy for the same protocol.

type Protocol = DeviceMarker

The protocol which this Proxy controls.

fn from_channel(inner: Channel) -> Self

Create a proxy over the given channel.

fn into_channel(self) -> Channel

Convert the proxy back into a channel.

fn as_channel(&self) -> &Channel

Get a reference to the proxy’s underlying channel.

fn is_closed(&self) -> Result<bool, Status>

Returns true if the proxy has received the PEER_CLOSED signal.