Enum Error 

#[non_exhaustive]
pub enum Error {
    CopySize {
        src_len: usize,
        frame_len: usize,
    },
    LcdI2cWrite {
        address: u8,
    },
    LcdRowOutOfBounds {
        row: usize,
    },
    CalibrationDegenerateGeometry,
    CalibrationResidualTooLarge {
        worst_residual_pixels: f32,
    },
    WifiAutoFormat,
    WifiAutoStorageCorrupted,
    WifiAutoMissingCustomField,
}

Unified error type for device-envoy-core.

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.

CopySize

A pixel copy’s source slice length did not match the destination frame length.

Fields

src_len: usize

Length of the source pixel slice.

frame_len: usize

Length of the destination frame.

LcdI2cWrite

An I2C write to the character LCD’s expander failed for the given address.

Fields

address: u8

The 7-bit I2C address that failed to write.

LcdRowOutOfBounds

Attempted to set the character LCD cursor to an out-of-range row.

Fields

row: usize

The out-of-range row index.

CalibrationDegenerateGeometry

Touch calibration input geometry was degenerate and could not be solved.

CalibrationResidualTooLarge

Touch calibration solved, but the residual error was too large to accept.

Fields

worst_residual_pixels: f32

The worst observed residual, in pixels.

WifiAutoFormat

Captive-portal data or rendering format was invalid.

WifiAutoStorageCorrupted

Stored Wi-Fi auto state is invalid for expected runtime flow.

WifiAutoMissingCustomField

A required custom field is missing from the Wi-Fi auto setup.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl From<(usize, usize)> for Error

fn from(value: (usize, usize)) -> Self

Converts to this type from the input type.

impl From<f32> for Error

fn from(value: f32) -> Self

Converts to this type from the input type.

impl From<u8> for Error

fn from(value: u8) -> Self

Converts to this type from the input type.

impl From<usize> for Error

fn from(value: usize) -> Self

Converts to this type from the input type.