Trait DescriptorVisitor 

pub trait DescriptorVisitor<'a> {
    type Error;

    // Provided methods
    fn on_configuration(&mut self, _c: &ConfigurationDescriptor) -> bool { ... }
    fn on_interface(&mut self, _i: &InterfaceDescriptorChain<'a>) -> bool { ... }
    fn on_endpoint(
        &mut self,
        _iface: &InterfaceDescriptorChain<'a>,
        _e: &EndpointDescriptor,
    ) -> bool { ... }
    fn on_other(
        &mut self,
        _iface: Option<&InterfaceDescriptorChain<'a>>,
        _raw: &[u8],
    ) -> Result<bool, Self::Error> { ... }
}

Callback-based visitor for a configuration’s descriptor tree.

Implement only the methods you care about.

Required Associated Types

type Error

Provided Methods

fn on_configuration(&mut self, _c: &ConfigurationDescriptor) -> bool

Return false to stop iteration early

fn on_interface(&mut self, _i: &InterfaceDescriptorChain<'a>) -> bool

Return false to stop iteration early

fn on_endpoint( &mut self, _iface: &InterfaceDescriptorChain<'a>, _e: &EndpointDescriptor, ) -> bool

Return false to stop iteration early

fn on_other( &mut self, _iface: Option<&InterfaceDescriptorChain<'a>>, _raw: &[u8], ) -> Result<bool, Self::Error>

Catches every sub-descriptor that isn’t an interface or endpoint: CS_INTERFACE, CS_ENDPOINT, HID, vendor-specific, etc. Return Ok(false) to stop iteration early without an error, or Err(e) to stop with one.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<'a> DescriptorVisitor<'a> for ShowDescriptors

type Error = Infallible