Enum DeviceRequest

pub enum DeviceRequest {
    GetMaxTransferSize {
        responder: DeviceGetMaxTransferSizeResponder,
    },
    SetBitrate {
        bitrate: u32,
        responder: DeviceSetBitrateResponder,
    },
    Transact {
        op: Vec<I2cImplOp>,
        responder: DeviceTransactResponder,
    },
    #[non_exhaustive]
    _UnknownMethod {
        ordinal: u64,
        method_type: MethodType,
    },
}

Low-level protocol for i2c drivers.

Variants

GetMaxTransferSize

Fields

responder: DeviceGetMaxTransferSizeResponder

SetBitrate

Sets the bitrate for the i2c bus in KHz units.

Fields

bitrate: u32

responder: DeviceSetBitrateResponder

Transact

|Transact| assumes that write ops write_data length are not zero. |Transact| assumes that at least the last op has stop set to true.

For each read-transaction, there will be a corresponding ReadData returned. Write-transactions produce no data result.

Fields

op: Vec<I2cImplOp>

responder: DeviceTransactResponder

_UnknownMethod

An interaction was received which does not match any known method.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

ordinal: u64

Ordinal of the method that was called.

method_type: MethodType

Implementations

impl DeviceRequest

pub fn into_get_max_transfer_size( self, ) -> Option<DeviceGetMaxTransferSizeResponder>

pub fn into_set_bitrate(self) -> Option<(u32, DeviceSetBitrateResponder)>

pub fn into_transact(self) -> Option<(Vec<I2cImplOp>, DeviceTransactResponder)>

pub fn new_get_max_transfer_size(self, tx_id: u32) -> Self

pub fn new_set_bitrate(self, bitrate: u32, tx_id: u32) -> Self

pub fn new_transact(self, op: Vec<I2cImplOp>, tx_id: u32) -> Self

pub fn get_max_transfer_size_as_message( arena: Arena, tx_id: u32, ) -> Result<Message<[u8]>, Error>

pub fn set_bitrate_as_message( arena: Arena, bitrate: u32, tx_id: u32, ) -> Result<Message<[u8]>, Error>

pub fn transact_as_message( arena: Arena, op: &[I2cImplOp], tx_id: u32, ) -> Result<Message<[u8]>, Error>

pub fn read_from( bytes: &[u8], _handles: &mut [HandleInfo], ) -> Result<Self, Error>

pub fn read_from_message(message: Message<[u8]>) -> Result<(Arena, Self), Error>

pub fn method_name(&self) -> &'static str

Name of the method defined in FIDL

Trait Implementations

impl Debug for DeviceRequest

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

Formats the value using the given formatter.

impl TryFrom<Message<[u8]>> for DeviceRequest

Like DeviceRequest::read_from_message except it drops the [Arena].

type Error = Error

The type returned in the event of a conversion error.

fn try_from(msg: Message<[u8]>) -> Result<DeviceRequest, Error>

Performs the conversion.