[−][src]Struct usb_device::descriptor::DescriptorWriter
A writer for USB descriptors.
Implementations
impl<'_> DescriptorWriter<'_>
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pub fn position(&self) -> usize
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Gets the current position in the buffer, i.e. the number of bytes written so far.
pub fn write(&mut self, descriptor_type: u8, descriptor: &[u8]) -> Result<()>
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Writes an arbitrary (usually class-specific) descriptor.
pub fn interface(
&mut self,
number: InterfaceNumber,
interface_class: u8,
interface_sub_class: u8,
interface_protocol: u8
) -> Result<()>
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&mut self,
number: InterfaceNumber,
interface_class: u8,
interface_sub_class: u8,
interface_protocol: u8
) -> Result<()>
Writes a interface descriptor.
Arguments
number
- Interface number previously allocated withUsbBusAllocator::interface
.interface_class
- Class code assigned by USB.org. Use0xff
for vendor-specific devices that do not conform to any class.interface_sub_class
- Sub-class code. Depends on class.interface_protocol
- Protocol code. Depends on class and sub-class.
pub fn endpoint<'e, B: UsbBus, D: EndpointDirection>(
&mut self,
endpoint: &Endpoint<'e, B, D>
) -> Result<()>
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&mut self,
endpoint: &Endpoint<'e, B, D>
) -> Result<()>
Writes an endpoint descriptor.
Arguments
endpoint
- Endpoint previously allocated withUsbBusAllocator
.
Auto Trait Implementations
impl<'a> Send for DescriptorWriter<'a>
impl<'a> Sync for DescriptorWriter<'a>
impl<'a> Unpin for DescriptorWriter<'a>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,