Enum UsbError

#[non_exhaustive]
pub enum UsbError {
    WouldBlock,
    ParseError,
    BufferOverflow,
    EndpointOverflow,
    EndpointMemoryOverflow,
    InvalidEndpoint,
    Unsupported,
    InvalidState,
    Impl(ImplError),
}

A USB specific error.

This error type contains errors specific to USB peripherals. Also it has an Impl kind to pass through implementation specific errors occuring while trying to use a USB peripheral.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

WouldBlock

An operation would block because the device is currently busy or there is no data available.

ParseError

Parsing failed due to invalid input.

BufferOverflow

A buffer too short for the data to read was passed, or provided data cannot fit within length constraints.

EndpointOverflow

Classes attempted to allocate more endpoints than the peripheral supports.

EndpointMemoryOverflow

Classes attempted to allocate more packet buffer memory than the peripheral supports. This can be caused by either a single class trying to allocate a packet buffer larger than the peripheral supports per endpoint, or multiple allocated endpoints together using more memory than the peripheral has available for the buffers.

InvalidEndpoint

The endpoint address is invalid or already used.

Unsupported

Operation is not supported by device or configuration.

InvalidState

Operation is not valid in the current state of the object.

Impl(ImplError)

Implementation specific error (shared across all peripheral specific error kinds)

Trait Implementations

impl Clone for UsbError

fn clone(&self) -> UsbError

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UsbError

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

Formats the value using the given formatter.