Enum GpioRequest 

pub enum GpioRequest {
    Read {
        responder: GpioReadResponder,
    },
    SetBufferMode {
        mode: BufferMode,
        responder: GpioSetBufferModeResponder,
    },
    GetInterrupt {
        options: InterruptOptions,
        responder: GpioGetInterruptResponder,
    },
    ConfigureInterrupt {
        config: InterruptConfiguration,
        responder: GpioConfigureInterruptResponder,
    },
    ReleaseInterrupt {
        responder: GpioReleaseInterruptResponder,
    },
    #[non_exhaustive]
    _UnknownMethod {
        ordinal: u64,
        control_handle: GpioControlHandle,
        method_type: MethodType,
    },
}

Common error codes:

• ZX_ERR_NOT_SUPPORTED: The requested operation is not supported by this controller.

Variants

Read

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

Fields

responder: GpioReadResponder

SetBufferMode

Configures the output buffer as per mode.

Fields

mode: BufferMode

responder: GpioSetBufferModeResponder

GetInterrupt

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.

Fields

options: InterruptOptions

responder: GpioGetInterruptResponder

ConfigureInterrupt

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.

Fields

config: InterruptConfiguration

responder: GpioConfigureInterruptResponder

ReleaseInterrupt

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.

Fields

responder: GpioReleaseInterruptResponder

#[non_exhaustive]

_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.

control_handle: GpioControlHandle

method_type: MethodType

Implementations

impl GpioRequest

pub fn into_read(self) -> Option<GpioReadResponder>

pub fn into_set_buffer_mode( self, ) -> Option<(BufferMode, GpioSetBufferModeResponder)>

pub fn into_get_interrupt( self, ) -> Option<(InterruptOptions, GpioGetInterruptResponder)>

pub fn into_configure_interrupt( self, ) -> Option<(InterruptConfiguration, GpioConfigureInterruptResponder)>

pub fn into_release_interrupt(self) -> Option<GpioReleaseInterruptResponder>

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

Name of the method defined in FIDL

Trait Implementations

impl Debug for GpioRequest

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

Formats the value using the given formatter.