Struct NodeInfo 

pub struct NodeInfo {
    pub id: NodeId,
    pub vendor_id: u16,
    pub product_id: u16,
    pub usage_page: u16,
    pub usage_id: u16,
    pub name: String,
    pub manufacturer: Option<String>,
    pub serial_number: Option<String>,
}

One HID node as the backend reports it, before anything is opened.

These are the fields enumeration filters on and routes address by — the intersection every HID backend can supply, which is also all the layers above the transport ever read.

Fields

id: NodeId

Backend-assigned identity of this node.

vendor_id: u16

HID vendor id of the device’s manufacturer.

product_id: u16

HID product id.

usage_page: u16

HID usage page of this node’s top-level collection.

usage_id: u16

HID usage id of this node’s top-level collection.

name: String

Human-readable device name.

manufacturer: Option<String>

Human-readable manufacturer, when the backend reports one.

serial_number: Option<String>

Device serial number, when the device has one and the backend can read it.

Implementations

impl NodeInfo

pub fn identity(&self) -> String

Stable opaque identity used by raw-device routes.

Prefers the HID serial; otherwise retains the backend’s node id as a runtime identity. The latter is deliberately not a cross-machine portable key, but it is stronger than enumeration order and lets duplicate nodes be rejected deterministically.

Trait Implementations

impl Clone for NodeInfo

fn clone(&self) -> NodeInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NodeInfo

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

Formats the value using the given formatter.