Struct EndpointDescriptor 

pub struct EndpointDescriptor {
    pub endpoint_address: u8,
    pub attributes: u8,
    pub max_packet_size: u16,
    pub interval: u8,
}

Standard USB Endpoint Descriptor.

Contains information to determine the bandwidth requirements. (USB 2.0 §9.6.6)

Fields

endpoint_address: u8

Endpoint address.

Contains the endpoint number and direction.

attributes: u8

Endpoint attribute bitmap.

max_packet_size: u16

Maximum packet size (11 bits).

For high-speed isochronous and interrupt endpoints, it also specifies aditional transaction opportunities.

interval: u8

Polling interval.

The meaning of this value depends on the transfer type and speed.

Implementations

impl EndpointDescriptor

pub fn ep_dir(&self) -> Direction

Returns the endpoint direction.

pub fn ep_type(&self) -> EndpointType

Returns the endpoint transfer type.

pub fn ep_number(&self) -> u8

Endpoint number (0-15).

pub fn is_in(&self) -> bool

True if this is an IN endpoint.

pub fn transfer_type(&self) -> u8

Transfer type (0=Control, 1=Isochronous, 2=Bulk, 3=Interrupt).

Trait Implementations

impl Clone for EndpointDescriptor

fn clone(&self) -> EndpointDescriptor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EndpointDescriptor

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

Formats the value using the given formatter.

impl ExtendableDescriptor for EndpointDescriptor

const MIN_LEN: u8 = 7u8

Minimum length of the descriptor.

fn match_bytes(bytes: &[u8]) -> Result<(), DescriptorError>

Matches bytes with this descriptor.

fn prepare_bytes(bytes: &mut [u8], len: u8) -> Result<(), DescriptorError>

where Self: WritableDescriptor,

Prepares bytes to receive descriptor data.

impl Format for EndpointDescriptor

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

Writes the defmt representation of self to fmt.

impl From<EndpointDescriptor> for EndpointInfo

fn from(value: EndpointDescriptor) -> Self

Converts to this type from the input type.

impl PartialEq for EndpointDescriptor

fn eq(&self, other: &EndpointDescriptor) -> 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 USBDescriptor for EndpointDescriptor

const BUF_SIZE: usize = 7usize

Size of the byte buffer.

const DESC_TYPE: u8 = 5u8

Descriptor type.

type Error = DescriptorError

fn try_from_bytes(bytes: &[u8]) -> Result<Self, Self::Error>

const DESC_SUBTYPE: Option<u8> = None

Descriptor subtype.

impl WritableDescriptor for EndpointDescriptor

fn write_to_bytes(&self, bytes: &mut [u8]) -> Result<usize, Self::Error>

Writes this descriptor to the start of the byte buffer bytes.

fn write_to_bytes_partial(&self, bytes: &mut [u8]) -> Result<usize, Self::Error>

Writes this descriptor to the start of the byte buffer bytes.

impl Copy for EndpointDescriptor

impl Eq for EndpointDescriptor

impl StructuralPartialEq for EndpointDescriptor