Enum MidiError 

pub enum MidiError {
    Transfer(PipeError),
    NoInterface,
    NoEndpoint,
    WrongDirection,
    NoPipe,
    Descriptor(MidiDescriptorError),
    UnsupportedTopology,
    InvalidPort,
    InvalidMessage(MidiPacketError),
    InvalidPacketLength,
}

USB MIDI host error.

Variants

Transfer(PipeError)

A USB transfer failed.

NoInterface

No MIDIStreaming interface was found.

NoEndpoint

The requested transfer direction is not exposed by the interface.

WrongDirection

An endpoint was opened using the wrong transfer direction.

NoPipe

The controller could not allocate an endpoint pipe.

Descriptor(MidiDescriptorError)

The MIDI descriptors are malformed or exceed a fixed capacity.

UnsupportedTopology

The device uses a topology unsupported by the friendly host API.

InvalidPort

A port does not belong to this MIDI device direction.

InvalidMessage(MidiPacketError)

A MIDI message could not be encoded as an event packet.

InvalidPacketLength

USB-MIDI transfers must contain complete four-byte event packets.

Trait Implementations

impl Debug for MidiError

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

Formats the value using the given formatter.

impl Display for MidiError

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

Formats the value using the given formatter.

impl Error for MidiError

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 Format for MidiError

where PipeError: Format, MidiDescriptorError: Format, MidiPacketError: Format,

fn format(&self, f: Formatter<'_>)

Writes the defmt representation of self to fmt.

impl From<MidiDescriptorError> for MidiError

fn from(error: MidiDescriptorError) -> Self

Converts to this type from the input type.

impl From<MidiPacketError> for MidiError

fn from(error: MidiPacketError) -> Self

Converts to this type from the input type.

impl From<PipeError> for MidiError

fn from(error: PipeError) -> Self

Converts to this type from the input type.