Enum TransferType 

pub enum TransferType {
    FixedSize,
    VariableSize,
}

Is this a fixed-size transfer or variable-size transfer?

According to USB 2.0 s5.3.2, the host must behave differently in each case, so needs to know. (In particular, a fixed-size transfer doesn’t have a zero-length packet even if the data fills an exact number of packets – whereas a variable-size transfer does have a zero-length packet in that case.)

Variants

FixedSize

Both ends know (via other means) how long the transfer should be

VariableSize

Open-ended transfer (the size given is a maximum)

Trait Implementations

impl Clone for TransferType

fn clone(&self) -> TransferType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TransferType

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

Formats the value using the given formatter.

impl Format for TransferType

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

Writes the defmt representation of self to fmt.

impl PartialEq for TransferType

fn eq(&self, other: &TransferType) -> 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 TransferType

impl Eq for TransferType

impl StructuralPartialEq for TransferType