Enum HalError 

pub enum HalError {
    Io(Error),
    DeviceNotFound(String),
    UnsupportedFormat(String),
    OutOfRange(String),
    Parse(String),
}

Errors returned by cr1140-hal.

Variants

Io(Error)

An underlying OS / I/O error (open, ioctl, sysfs read/write).

DeviceNotFound(String)

A device or node could not be located (e.g. no input matched a name).

UnsupportedFormat(String)

The framebuffer is not the expected xRGB8888/32bpp layout.

OutOfRange(String)

A value was outside the hardware’s accepted range.

Parse(String)

A sysfs/procfs value could not be parsed.

Trait Implementations

impl Debug for HalError

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

Formats the value using the given formatter.

impl Display for HalError

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

Formats the value using the given formatter.

impl Error for HalError

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 HalError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<HalError> for Error

Degrade a HalError back to an std::io::Error so existing io::Result-based callers (e.g. cr1140-sdk) keep composing with ?. The HalError::Io variant is returned as-is; the rest map to std::io::ErrorKind::Other preserving the message.

fn from(e: HalError) -> Self

Converts to this type from the input type.