在Windows上使用HID设备的情况下，如何获取供应商和产品字符串?

问题描述

我需要获取有关Windows计算机上插入的HID设备的idProduct和idVendor的信息.如何获得给定HID设备的USB_DEVICE_DESCRIPTOR?

I need to get information about the idProduct and idVendor of a plugged in HID device on my Windows machine. How do I get the USB_DEVICE_DESCRIPTOR for a given HID device?

我搜索了Internet，但仅找到使用WinUSB库查询设备并获取USB_DEVICE_DESCRIPTOR的示例.我的理解是我无法使用WinUSB插入HID设备.

I searched the internet, but I only found examples of devices being queried using the WinUSB library and getting the USB_DEVICE_DESCRIPTOR. My understanding that I cannot use WinUSB for plugged in HID device.

那么我需要为HID设备使用什么?

What do I need to use for a HID device then?

推荐答案

如果您使用的是 HidLibrary ，您可以获得这样的设备:

If you're using HidLibrary, you can get a device like this:

_device = HidDevices.Enumerate(VendorId, ProductId, UsagePage).FirstOrDefault();

if (_device != null) {
    _device.OpenDevice();
    string product = GetProductString(_device);
    string mfg = GetManufacturerString(_device);
}

后两个函数的定义如下:

With the latter two functions defined like this:

    private string GetProductString(HidDevice d) {
        byte[] bs;
        _device.ReadProduct(out bs);
        string ps = "";
        foreach (byte b in bs) {
            if (b > 0)
                ps += ((char)b).ToString();
        }
        return ps;
    }

    private string GetManufacturerString(HidDevice d) {
        byte[] bs;
        _device.ReadManufacturer(out bs);
        string ps = "";
        foreach (byte b in bs) {
            if (b > 0)
                ps += ((char)b).ToString();
        }
        return ps;
    }

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