Trait DescriptorVisitor 

pub trait DescriptorVisitor<'a> {
    type Error;

    // Provided methods
    fn on_configuration(&mut self, _c: &ConfigurationDescriptor<'a>) -> bool { ... }
    fn on_interface(&mut self, _i: &InterfaceDescriptor<'a>) -> bool { ... }
    fn on_endpoint(
        &mut self,
        _iface: &InterfaceDescriptor<'a>,
        _e: &EndpointDescriptor,
    ) -> bool { ... }
    fn on_other(
        &mut self,
        _iface: Option<&InterfaceDescriptor<'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<'a>) -> bool

Return false to stop iteration early

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

Return false to stop iteration early

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

Return false to stop iteration early

fn on_other( &mut self, _iface: Option<&InterfaceDescriptor<'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.

Implementors

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

type Error = Infallible