Enum ActivateError 

#[non_exhaustive]
pub enum ActivateError {
    BackendUnavailable(String),
    IncompatibleFeatures(&'static str),
    Other(String),
}

Errors a device can surface during activation. Activation runs once per device, on the driver’s Status |= DRIVER_OK write.

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.

BackendUnavailable(String)

Device backend (host file, socket) is unavailable.

IncompatibleFeatures(&'static str)

Driver acked features that are mutually exclusive with the device’s configured backend.

Other(String)

Device-specific activation error; carries a free-form message so device modules don’t need their own error subtypes.

Trait Implementations

impl Debug for ActivateError

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

Formats the value using the given formatter.

impl Display for ActivateError

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

Formats the value using the given formatter.

impl Error for ActivateError

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<ActivateError> for VirtioError

fn from(source: ActivateError) -> Self

Converts to this type from the input type.