Enum UsbError 

pub enum UsbError {
    NoDevice,
    Failed,
    BadRequest,
    Host(Error),
}

Why a transfer did not happen.

Variants

NoDevice

The host has no device bound for this driver: unplugged, or not enumerated yet.

Failed

The host tried, and the device or the bus did not complete it.

BadRequest

The request was not one the host takes: too long, an endpoint the device does not have, or empty.

Host(Error)

The host itself did not answer, or answered something that was not this protocol.

Implementations

impl UsbError

pub fn as_str(&self) -> &'static str

A sentence for a log line.

Trait Implementations

impl Clone for UsbError

fn clone(&self) -> UsbError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UsbError

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

Formats the value using the given formatter.

impl PartialEq for UsbError

fn eq(&self, other: &UsbError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for UsbError

impl Eq for UsbError

impl StructuralPartialEq for UsbError