incorrect device class about gousb HOT 2 CLOSED

package main

import (
	"fmt"

	"github.com/google/gousb"
)

func main() {
	ctx := gousb.NewContext()
	defer ctx.Close()

	devices, err := ctx.OpenDevices(func(desc *gousb.DeviceDesc) bool {
		for _, config := range desc.Configs {
			for _, inter := range config.Interfaces {
				for _, setting := range inter.AltSettings {
					// Check if the interface class of USB is `Printer`
					if setting.Class == gousb.ClassPrinter {
						return true
					}
				}
			}
		}
		return false
	})

	if err != nil {
		panic(err)
	}

	// Check if printers exists
	if len(devices) == 0 {
		fmt.Println("No Printer Found!")
		return
	}

	fmt.Println("Printers: ")
	for _, device := range devices {
		name, _ := device.Product()
		vid := device.Desc.Vendor
		pid := device.Desc.Product
		port := device.Desc.Port
		fmt.Println(name, vid, pid, port)
	}
}