Enum CanError 

pub enum CanError {
    Io(Error),
    Device(CanDeviceError),
    Timeout,
    BufferOverflow,
    BusOff,
    NotStarted,
}

CAN 适配层统一错误类型

Variants

Io(Error)

USB/IO 底层错误

Device(CanDeviceError)

设备相关错误（设备未找到、未启动、配置失败等）

Timeout

读取超时（非致命，可以重试）

BufferOverflow

缓冲区溢出（致命错误）

BusOff

总线关闭（致命错误，需要重启）

NotStarted

设备未启动

Trait Implementations

impl Debug for CanError

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

Formats the value using the given formatter.

impl Display for CanError

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

Formats the value using the given formatter.

impl Error for CanError

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<CanDeviceError> for CanError

fn from(source: CanDeviceError) -> Self

Converts to this type from the input type.

impl From<CanError> for RobotError

fn from(source: CanError) -> Self

Converts to this type from the input type.

impl From<Error> for CanError

fn from(source: Error) -> Self

Converts to this type from the input type.