Enum rppal::gpio::Error[−][src]

pub enum Error {
    UnknownModel,
    PinNotAvailable(u8),
    PermissionDenied(String),
    Io(Error),
    ThreadPanic,
}

Errors that can occur when accessing the GPIO peripheral.

Variants

UnknownModel

Unknown model.

The Raspberry Pi model or SoC can't be identified. Support for new models is usually added shortly after they are officially announced and available to the public. Make sure you're using the latest release of RPPAL.

You may also encounter this error if your Linux distribution doesn't provide any of the common user-accessible system files that are used to identify the model and SoC.

PinNotAvailable(u8)

Pin is not available.

The pin is already in use elsewhere in your application, or the GPIO peripheral doesn't expose a pin with the specified number. If the pin is currently in use, you can retrieve it again after the Pin (or a derived InputPin, OutputPin or IoPin) instance goes out of scope.

PermissionDenied(String)

Permission denied when opening /dev/gpiomem, /dev/mem or /dev/gpiochipN for read/write access.

More information on possible causes for this error can be found here.

Io(Error)

I/O error.

ThreadPanic

Thread panicked.

Trait Implementations

impl Debug for Error[src]

impl Display for Error[src]

impl Error for Error[src]

impl From<Error> for Error[src]

impl From<Error> for Error[src]

impl From<Error> for Error[src]

Auto Trait Implementations

impl !RefUnwindSafe for Error[src]

impl Send for Error[src]

impl Sync for Error[src]

impl Unpin for Error[src]

impl !UnwindSafe for Error[src]

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T> ToString for T where
    T: Display + ?Sized, [src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.