Enum fidl_fuchsia_lowpan_spinel::DeviceRequest

pub enum DeviceRequest {
    Open {
        responder: DeviceOpenResponder,
    },
    Close {
        responder: DeviceCloseResponder,
    },
    GetMaxFrameSize {
        responder: DeviceGetMaxFrameSizeResponder,
    },
    SendFrame {
        data: Vec<u8>,
        control_handle: DeviceControlHandle,
    },
    ReadyToReceiveFrames {
        number_of_frames: u32,
        control_handle: DeviceControlHandle,
    },
}

Variants

Open

Opens the Spinel connection and performs initialization.

This method will block until the Device is ready to use or an error has been encountered. If an error is indicated, the device is still considered closed.

Calling this method will typically induce reset if supported by the underlying hardware. It may be called while the device is already open in order to trigger a reset.

Possible error codes:

• Error::IO_ERROR: An IO error occurred.
• Error::UNSPECIFIED: An unspecified error occurred. See logs for more details.

Fields

responder: DeviceOpenResponder

Close

Close the Spinel connection.

This method will block until the Device has successfully been put into a closed (preferably low-power) state. An error may be indicated if a problem was encountered that may indicate the device did not close cleanly.

Calling this method will always cause this interface to be closed, even if an error is reported. Thus, the error may be simply ignored or logged.

Calling this method when the device is already closed will do nothing.

Possible error codes:

• Error::IO_ERROR: An IO error occurred.
• Error::UNSPECIFIED: An unspecified error occurred. See logs for more details.

Fields

responder: DeviceCloseResponder

GetMaxFrameSize

Fetch the max frame size.

This method may be called at any time. The returned value is an implementation-specific constant.

@return The size of the largest frame that this implementation supports being passed into SendFrame().

Fields

responder: DeviceGetMaxFrameSizeResponder

SendFrame

Sends a Spinel-formatted frame to the device.

Calling this method while the device is closed will cause the frame to be dropped and ->OnError() to emit Error::CLOSED.

See ->OnReadyForSendFrames() for flow-control considerations.

Fields

data: Vec<u8>

control_handle: DeviceControlHandle

ReadyToReceiveFrames

Increases the number of additional frames that the caller is currently ready to receive, as a method of inbound flow-control.

The caller can use this method to regulate the speed at which inbound frames are handled. This method should be called periodically to ensure low-latency frame delivery.

Calling this method with a non-zero value indicates to the receiver that the caller is ready to receive the specified additional number of frames.

This method SHOULD NOT be called with a value of zero. If the receiver gets this call with a value of zero, it MUST be ignored.

Frames will not be received until this method is first called with a non-zero value. Once received, the receiver will limit the number of subsequent frames emitted via ->OnReceiveFrame() to the given number of frames.

Calling this method while the device is closed will do nothing.

A reasonable usage pattern would be to first call this method with a value of 4, calling it again with a value of 2 after every second received inbound frame.

Outbound flow control is similarly accomplished via ->OnReadyForSendFrames().

Fields

number_of_frames: u32

control_handle: DeviceControlHandle

Implementations

impl DeviceRequest

pub fn into_open(self) -> Option<DeviceOpenResponder>

pub fn into_close(self) -> Option<DeviceCloseResponder>

pub fn into_get_max_frame_size(self) -> Option<DeviceGetMaxFrameSizeResponder>

pub fn into_send_frame(self) -> Option<(Vec<u8>, DeviceControlHandle)>

pub fn into_ready_to_receive_frames(self) -> Option<(u32, DeviceControlHandle)>

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.