Trait capsules::usb::Descriptor

pub trait Descriptor {
    fn size(&self) -> usize;
    fn write_to_unchecked(&self, buf: &[Cell<u8>]) -> usize;

    fn write_to(&self, buf: &[Cell<u8>]) -> usize { ... }
}

Required Methods

fn size(&self) -> usize

Serialized size of Descriptor

fn write_to_unchecked(&self, buf: &[Cell<u8>]) -> usize

Same as write_to(), but doesn't check that buf is long enough before indexing into it. This should be used only if the result of size() is first consulted.

Provided Methods

fn write_to(&self, buf: &[Cell<u8>]) -> usize

Serialize the descriptor to a buffer for transmission on the bus

Implementors

• impl Descriptor for DeviceDescriptor
• impl Descriptor for ConfigurationDescriptor
• impl Descriptor for InterfaceDescriptor
• impl<'a> Descriptor for LanguagesDescriptor<'a>
• impl<'a> Descriptor for StringDescriptor<'a>