Trait USBDescriptor 

pub trait USBDescriptor {
    type Error;

    const BUF_SIZE: usize;
    const DESC_TYPE: u8;
    const DESC_SUBTYPE: Option<u8> = None;

    // Required method
    fn try_from_bytes(bytes: &[u8]) -> Result<Self, Self::Error>
       where Self: Sized;
}

Trait for a USB descriptor that can be parsed from a byte slice.

Required Associated Constants

const BUF_SIZE: usize

Size of the byte buffer.

This is the size of the byte buffer that should be used to read or write the descriptor. This is not the size of the descriptor.

const DESC_TYPE: u8

Descriptor type.

This constant is compared against byte 1 of the buffer while reading.

Provided Associated Constants

const DESC_SUBTYPE: Option<u8> = None

Descriptor subtype.

If this constant is None, then it is ignored. If this constant is Some(subtype), then subtype is compared against byte 2 of the buffer while reading.

This constant is None by default.

Required Associated Types

type Error

Required Methods

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

where Self: Sized,

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl USBDescriptor for ClockDescriptor

const BUF_SIZE: usize = 15usize

const DESC_TYPE: u8 = 36u8

type Error = AudioInterfaceError

impl USBDescriptor for FormatTypeDescriptor

const BUF_SIZE: usize = 10usize

const DESC_TYPE: u8 = 36u8

const DESC_SUBTYPE: Option<u8>

type Error = DescriptorError

impl USBDescriptor for TerminalDescriptor

const BUF_SIZE: usize = 17usize

const DESC_TYPE: u8 = 36u8

type Error = DescriptorError

impl USBDescriptor for UnitDescriptor

const BUF_SIZE: usize = 4usize

const DESC_TYPE: u8 = 36u8

type Error = DescriptorError

impl USBDescriptor for HubDescriptor

const BUF_SIZE: usize = 71usize

const DESC_TYPE: u8 = 41u8

type Error = DescriptorError

impl USBDescriptor for HIDDescriptor

const BUF_SIZE: usize = 9usize

const DESC_TYPE: u8 = 33u8

type Error = DescriptorError

impl USBDescriptor for AudioControlHeaderDescriptor

const BUF_SIZE: usize = 9usize

const DESC_TYPE: u8 = 36u8

const DESC_SUBTYPE: Option<u8>

type Error = DescriptorError

impl USBDescriptor for AudioEndpointDescriptor

const BUF_SIZE: usize = 8usize

const DESC_TYPE: u8 = 37u8

const DESC_SUBTYPE: Option<u8>

type Error = DescriptorError

impl USBDescriptor for AudioStreamingClassDescriptor

const BUF_SIZE: usize = 16usize

const DESC_TYPE: u8 = 36u8

const DESC_SUBTYPE: Option<u8>

type Error = DescriptorError

impl USBDescriptor for ClockMultiplierDescriptor

const BUF_SIZE: usize = 7usize

const DESC_TYPE: u8 = 36u8

const DESC_SUBTYPE: Option<u8>

type Error = DescriptorError

impl USBDescriptor for ClockSelectorDescriptor

const BUF_SIZE: usize = 15usize

const DESC_TYPE: u8 = 36u8

const DESC_SUBTYPE: Option<u8>

type Error = AudioInterfaceError

impl USBDescriptor for ClockSourceDescriptor

const BUF_SIZE: usize = 8usize

const DESC_TYPE: u8 = 36u8

const DESC_SUBTYPE: Option<u8>

type Error = DescriptorError

impl USBDescriptor for InputTerminalDescriptor

const BUF_SIZE: usize = 17usize

const DESC_TYPE: u8 = 36u8

const DESC_SUBTYPE: Option<u8>

type Error = DescriptorError

impl USBDescriptor for InterfaceAssociationDescriptor

const BUF_SIZE: usize = 8usize

const DESC_TYPE: u8 = 11u8

type Error = DescriptorError

impl USBDescriptor for OutputTerminalDescriptor

const BUF_SIZE: usize = 12usize

const DESC_TYPE: u8 = 36u8

const DESC_SUBTYPE: Option<u8>

type Error = DescriptorError

impl USBDescriptor for ConfigurationDescriptor

const BUF_SIZE: usize = 9usize

const DESC_TYPE: u8 = 2u8

type Error = DescriptorError

impl USBDescriptor for DeviceDescriptor

const BUF_SIZE: usize = 18usize

const DESC_TYPE: u8 = 1u8

type Error = DescriptorError

impl USBDescriptor for DeviceDescriptorPartial

const BUF_SIZE: usize = 8usize

const DESC_TYPE: u8 = 1u8

type Error = DescriptorError

impl USBDescriptor for EndpointDescriptor

const BUF_SIZE: usize = 7usize

const DESC_TYPE: u8 = 5u8

type Error = DescriptorError

impl USBDescriptor for InterfaceDescriptor

const BUF_SIZE: usize = 9usize

const DESC_TYPE: u8 = 4u8

type Error = DescriptorError

impl USBDescriptor for StringDescriptor

const BUF_SIZE: usize = 254usize

const DESC_TYPE: u8 = 3u8

type Error = DescriptorError

impl USBDescriptor for StringDescriptorLossy

const BUF_SIZE: usize = 254usize

const DESC_TYPE: u8 = 3u8

type Error = DescriptorError

impl USBDescriptor for StringDescriptorZero

const BUF_SIZE: usize = 254usize

const DESC_TYPE: u8 = 3u8

type Error = DescriptorError