Enum GbmError 

#[non_exhaustive]
pub enum GbmError {
    NotGbmCapable(String),
    Allocation(String),
    Io(Errno),
}

What went wrong allocating or exporting.

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.

NotGbmCapable(String)

The device could not be opened as a GBM device.

Either libgbm could not be loaded – not installed, or missing an entry point this crate cannot do without – or it would not open the descriptor, which every DRM node that can allocate anything allows, so in practice that means it is not a DRM node at all. The string says which.

Allocation(String)

The driver refused the allocation.

Usually the format, the modifier set, or the usage flags: a driver advertises what it can scan out through IN_FORMATS, and asking for anything else fails here rather than at commit time. Also returned when a buffer cannot be exported as a dma-buf.

Io(Errno)

The DRM descriptor could not be duplicated.

Trait Implementations

impl Debug for GbmError

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

Formats the value using the given formatter.

impl Display for GbmError

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

Formats the value using the given formatter.

impl Error for GbmError

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<Errno> for GbmError

fn from(source: Errno) -> Self

Converts to this type from the input type.