fidl_fuchsia_hardware_input

Enum DeviceRequest

Source
pub enum DeviceRequest {
    Query {
        responder: DeviceQueryResponder,
    },
    GetReportDesc {
        responder: DeviceGetReportDescResponder,
    },
    GetDeviceReportsReader {
        reader: ServerEnd<DeviceReportsReaderMarker>,
        responder: DeviceGetDeviceReportsReaderResponder,
    },
    ReadReport {
        responder: DeviceReadReportResponder,
    },
    ReadReports {
        responder: DeviceReadReportsResponder,
    },
    GetReportsEvent {
        responder: DeviceGetReportsEventResponder,
    },
    GetReport {
        type_: ReportType,
        id: u8,
        responder: DeviceGetReportResponder,
    },
    SetReport {
        type_: ReportType,
        id: u8,
        report: Vec<u8>,
        responder: DeviceSetReportResponder,
    },
    SetTraceId {
        id: u32,
        control_handle: DeviceControlHandle,
    },
}

Variants§

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Query

Obtain information about the hidbus device and supported features.

Fields

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GetReportDesc

Get the report descriptor

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GetDeviceReportsReader

Open a new DeviceReportsReader on this device. Opening a DeviceReportsReader allocates a new FIFO for receiving input reports.

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ReadReport

Read one report out of the report FIFO. Only a single report will be returned in this API. time is the time the report was created, from the view of the monotonic clock. If status is ZX_ERR_SHOULD_WAIT the client can wait on the event from GetReportsEvent.

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ReadReports

Read up to MAX_REPORT_DATA bytes of reports that have been sent from a device. This is the interface that is supposed to be used for continuous polling. Multiple reports can be returned from this API at a time, it is up to the client to do the parsing of the reports with the correct sizes and offset. It is guaranteed that only whole reports will be sent. If there are no reports, this will return ZX_ERR_SHOULD_WAIT, and the client can wait on the event from GetReportsEvent.

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GetReportsEvent

Receive an event that will signal on ZX_USER_SIGNAL_0 when there are reports in the Device’s report FIFO. This signal will be de-asserted when there are no reports in the Device’s report FIFO. This event can be re-used each time the client wishes to know if there are reports in the FIFO.

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GetReport

Send a request to the hardware for a given report described by type and id. Returns the hardware’s response. This interface is not intended to be used for continuous polling of the reports.

Fields

§id: u8
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SetReport

Set a single report of the given (type, id) pair.

Fields

§id: u8
§report: Vec<u8>
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SetTraceId

Set the trace ID that is used for HID report flow events.

Fields

§id: u32
§control_handle: DeviceControlHandle

Implementations§

Trait Implementations§

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impl Debug for DeviceRequest

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

Formats the value using the given formatter. Read more

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unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _offset: usize, _depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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