C#中WinUSB设备的识别与枚举

在C#中识别和枚举WinUSB设备，我们可以使用Windows API函数来实现。下面是一个简单的示例代码，演示了如何使用C#来识别和枚举WinUSB设备：

using System;using System.Runtime.InteropServices;class Program{    [StructLayout(LayoutKind.Sequential)]    public struct SP_DEVICE_INTERFACE_DATA    {        public int cbSize;        public Guid interfaceClassGuid;        public int flags;        public IntPtr reserved;    }    [StructLayout(LayoutKind.Sequential)]    public struct SP_DEVINFO_DATA    {        public int cbSize;        public Guid classGuid;        public int devInst;        public IntPtr reserved;    }    [DllImport("setupapi.dll", SetLastError = true)]    public static extern IntPtr SetupDiGetClassDevs(ref Guid classGuid, IntPtr enumerator, IntPtr hwndParent, int flags);    [DllImport("setupapi.dll", SetLastError = true)]    public static extern bool SetupDiEnumDeviceInterfaces(IntPtr deviceInfoSet, IntPtr deviceInfoData, ref Guid interfaceClassGuid, int memberIndex, ref SP_DEVICE_INTERFACE_DATA deviceInterfaceData);    [DllImport("setupapi.dll", SetLastError = true)]    public static extern bool SetupDiGetDeviceInterfaceDetail(IntPtr deviceInfoSet, ref SP_DEVICE_INTERFACE_DATA deviceInterfaceData, IntPtr deviceInterfaceDetailData, int deviceInterfaceDetailDataSize, ref int requiredSize, ref SP_DEVINFO_DATA deviceInfoData);    static void Main(string[] args)    {        Guid guid = new Guid("{88BAE032-5A81-49f0-BC3D-A4FF138216D6}"); // WinUSB GUID        IntPtr deviceInfoSet = SetupDiGetClassDevs(ref guid, IntPtr.Zero, IntPtr.Zero, 0);        if (deviceInfoSet != IntPtr.Zero)        {            SP_DEVICE_INTERFACE_DATA deviceInterfaceData = new SP_DEVICE_INTERFACE_DATA();            deviceInterfaceData.cbSize = Marshal.SizeOf(deviceInterfaceData);            for (int i = 0; SetupDiEnumDeviceInterfaces(deviceInfoSet, IntPtr.Zero, ref guid, i, ref deviceInterfaceData); i++)            {                // Get device path                int requiredSize = 0;                SP_DEVINFO_DATA deviceInfoData = new SP_DEVINFO_DATA();                if (SetupDiGetDeviceInterfaceDetail(deviceInfoSet, ref deviceInterfaceData, IntPtr.Zero, 0, ref requiredSize, ref deviceInfoData))                {                    IntPtr deviceInterfaceDetailData = Marshal.AllocHGlobal(requiredSize);                    try                    {                        // Fill the deviceInterfaceDetailData                        if (SetupDiGetDeviceInterfaceDetail(deviceInfoSet, ref deviceInterfaceData, deviceInterfaceDetailData, requiredSize, ref requiredSize, ref deviceInfoData))                        {                            // Get device path from deviceInterfaceDetailData                            // Do something with the device path                        }                    }                    finally                    {                        Marshal.FreeHGlobal(deviceInterfaceDetailData);                    }                }            }        }    }}

在上面的示例中，我们使用了SetupDiGetClassDevs、SetupDiEnumDeviceInterfaces和SetupDiGetDeviceInterfaceDetail这几个Windows API函数来获取WinUSB设备的信息。通过调用这些函数，我们可以获取WinUSB设备的路径信息等。在实际应用中，我们可以根据获取到的设备路径信息，来进行对WinUSB设备的操作。