Enum Error

pub enum Error {
    InvalidDeviceCount,
    InvalidScanLimit,
    InvalidRegister,
    InvalidDeviceIndex,
    InvalidDigit,
    InvalidIntensity,
    UnsupportedChar,
    BufferError,
    SpiError,
}

Errors that can occur when using the MAX7219 driver

Variants

InvalidDeviceCount

The specified device count is invalid (exceeds maximum allowed).

InvalidScanLimit

Invalid scan limit value (must be 0-7)

InvalidRegister

The specified register address is not valid for the MAX7219.

InvalidDeviceIndex

Invalid device index (exceeds configured number of devices)

InvalidDigit

Invalid digit position (0-7 for MAX7219)

InvalidIntensity

Invalid intensity value (must be 0-15)

UnsupportedChar

Unsupported Character

BufferError

Buffer Error

SpiError

SPI communication error

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl<E> From<E> for Error

where E: Error,

Convert any embedded-hal SPI error into a general SpiError.

This allows using the ? operator with SPI operations, automatically mapping their error into the driver’s unified Error type.

fn from(_value: E) -> Self

Converts to this type from the input type.

impl PartialEq for Error

fn eq(&self, other: &Error) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Error

impl StructuralPartialEq for Error