Enum PiFaceDigitalError 

pub enum PiFaceDigitalError {
    Mcp23s17Error {
        source: Mcp23s17Error,
    },
    HardwareAddressBoundsError(u8),
    NoHardwareDetected {
        spi_bus: SpiBus,
        hardware_address: HardwareAddress,
    },
    GpioError {
        source: Error,
    },
}

Errors that operation of the PiFace Digital can raise.

Variants

Mcp23s17Error

Errors from the rppal_mcp23s17::Mcp23s17.

Fields

source: Mcp23s17Error

Underlying error source.

HardwareAddressBoundsError(u8)

Attempt to access a PiFace Digital beyond the hardware address range (0 - HardwareAddress::MAX_HARDWARE_ADDRESS).

NoHardwareDetected

Failed to detect the presence of any physical PiFace Digital device connected to the SPI bus.

Fields

spi_bus: SpiBus

SPI bus we tried to access the device over.

hardware_address: HardwareAddress

Hardware address of the device we tried to access.

GpioError

Errors accessing the GPIO for the interrupt input.

Fields

source: Error

Underlying error source.

Trait Implementations

impl Debug for PiFaceDigitalError

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

Formats the value using the given formatter.

impl Display for PiFaceDigitalError

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

Formats the value using the given formatter.

impl Error for PiFaceDigitalError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for PiFaceDigitalError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Mcp23s17Error> for PiFaceDigitalError

fn from(source: Mcp23s17Error) -> Self

Converts to this type from the input type.