Struct DfuDesc 

pub struct DfuDesc {
    pub can_download: bool,
    pub can_upload: bool,
    pub manifest_tolerant: bool,
    pub will_detach: bool,
    pub detach_timeout_ms: u16,
    pub transfer_size: u16,
    pub dfu_version: (u8, u8),
}

USB DFU (Device Firmware Upgrade) functional descriptor.

This descriptor is placed after a DFU interface descriptor and advertises the device’s DFU capabilities to the host. It is defined by the USB DFU 1.1 specification.

Use Interface::with_custom_desc to attach it to an interface:

use usb_gadget::{
    function::custom::{DfuDesc, Interface},
    Class,
};

let dfu = DfuDesc {
    can_download: true,
    can_upload: true,
    manifest_tolerant: false,
    will_detach: true,
    detach_timeout_ms: 1000,
    transfer_size: 4096,
    dfu_version: (1, 1),
};

let dfu_class = Class::DFU_RUNTIME;
let interface = Interface::new(dfu_class, "DFU").with_custom_desc(dfu.into());

Requires kernel 6.12 or later.

Fields

can_download: bool

Device is capable of receiving firmware via DFU.

can_upload: bool

Device is capable of uploading firmware via DFU.

manifest_tolerant: bool

Device is able to communicate after the manifestation phase (firmware programming) without a bus reset.

will_detach: bool

Device will perform a bus detach-attach sequence when it receives a DFU_DETACH request. The host must not issue a USB Reset.

detach_timeout_ms: u16

Time, in milliseconds, that the device will wait after receipt of the DFU_DETACH request. If this time elapses without a USB reset, then the device will terminate the reconfiguration phase and revert to normal operation.

transfer_size: u16

Maximum number of bytes that the device can accept per control-write transaction.

dfu_version: (u8, u8)

DFU specification version as (major, minor) in BCD.

For example, DFU 1.1 is (1, 1).

Trait Implementations

impl Clone for DfuDesc

fn clone(&self) -> DfuDesc

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DfuDesc

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

Formats the value using the given formatter.

impl Eq for DfuDesc

impl From<DfuDesc> for CustomDesc

fn from(dfu: DfuDesc) -> Self

Converts to this type from the input type.

impl Hash for DfuDesc

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for DfuDesc

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DfuDesc