Great question! You've got two solid paths to achieve your goal—one that works entirely within Chrome (no system-level tweaks needed), and another that creates a full system-level virtual USB device. Let's break them down:

一、仅通过Chrome浏览器实现（快速测试首选） #

If you only need to fool the Chrome-based website's WebUSB checks, you don't need to mess with system-level virtual hardware. Here are two easy methods:

1. Chrome DevTools内置的WebUSB模拟（Chrome 94+） #

Chrome's DevTools has a built-in tool to mock USB devices directly, which lets you set custom manufacturer_name and product_name values in seconds:

• Open DevTools (F12), click the three-dot menu in the top-right → More tools → WebUSB
• Click the Add device button, then fill in your desired manufacturer and product names in the form (you can leave other fields like vendor ID/product ID as defaults if you don't need them)
• Save the mock device, and the next time the site calls the WebUSB API, it'll detect your fake device and send the payload with your custom values.

2. Chrome扩展拦截并修改WebUSB responses #

For more dynamic control (like changing values on the fly or automating tests), you can build a tiny Chrome extension to override the WebUSB API calls and return your custom device data. Here's a quick snippet for the extension's content script:

// Override the getDevices method to return our fake USB device
const originalGetDevices = navigator.usb.getDevices;
navigator.usb.getDevices = async () => {
  const fakeDevice = {
    manufacturerName: "Your Custom Manufacturer",
    productName: "Your Custom Product",
    vendorId: 0x1234, // Random valid vendor ID
    productId: 0x5678 // Random valid product ID
    // Add other required properties if the site checks for them
  };
  return [fakeDevice];
};

This will make the site think your custom device is connected, without any actual hardware.

二、系统级虚拟USB设备（接近真实硬件场景） #

If the site relies on low-level USB driver interactions (not just the WebUSB API), you'll need to create a system-level virtual USB device. This is more involved but mimics a real hardware device:

• Windows: Use tools like USBIP or third-party virtual USB drivers to define a custom device descriptor with your desired manufacturer and product names.
• macOS/Linux: Leverage libraries like libusb alongside system-specific frameworks (Linux's gadget subsystem, macOS's IOUSBFamily tools) to craft a virtual USB device with custom string descriptors.

Final Verdict #

For your use case (a Chrome-only site using WebUSB), start with the DevTools WebUSB mock or Chrome extension—they're fast, no-fuss, and perfect for testing your challenge task. Only go the system-level virtual device route if you need full hardware emulation.

内容的提问来源于stack exchange，提问作者krise