C# WinUSB设备的双向通信实现

要实现C#中WinUSB设备的双向通信，需要使用WinUSB API来进行USB设备的控制和通信。以下是一个简单的示例，演示如何通过C#实现与WinUSB设备的双向通信：

using System; using System.Runtime.InteropServices; using Microsoft.Win32.SafeHandles;  public class WinUSBCommunication {     // WinUSB API定义     [DllImport("winusb.dll", SetLastError = true)]     public static extern bool WinUsb_Initialize(SafeFileHandle deviceHandle, out IntPtr winusbHandle);      [DllImport("winusb.dll", SetLastError = true)]     public static extern bool WinUsb_Free(IntPtr winusbHandle);      [DllImport("winusb.dll", SetLastError = true)]     public static extern bool WinUsb_ReadPipe(IntPtr winusbHandle, byte pipeID, byte[] buffer, uint bufferLength, out uint bytesRead, IntPtr overlapped);      [DllImport("winusb.dll", SetLastError = true)]     public static extern bool WinUsb_WritePipe(IntPtr winusbHandle, byte pipeID, byte[] buffer, uint bufferLength, out uint bytesWritten, IntPtr overlapped);      // USB设备路径     private const string DevicePath = @"\\?\USB#VID_XXXX&PID_XXXX#XXXX#{XXXX}#";      // USB设备句柄     private SafeFileHandle deviceHandle;      // WinUSB句柄     private IntPtr winusbHandle;      public WinUSBCommunication()     {         // 打开USB设备         deviceHandle = CreateFile(DevicePath, FileAccess.ReadWrite, FileShare.ReadWrite, IntPtr.Zero, FileMode.Open, FileAttributes.Normal, IntPtr.Zero);          // 初始化WinUSB         WinUsb_Initialize(deviceHandle, out winusbHandle);     }      public void ReadData()     {         // 读取数据         byte[] buffer = new byte[64];         uint bytesRead;         WinUsb_ReadPipe(winusbHandle, 0x81, buffer, (uint)buffer.Length, out bytesRead, IntPtr.Zero);          // 处理接收到的数据         Console.WriteLine("Received data: " + BitConverter.ToString(buffer));     }      public void WriteData(byte[] data)     {         // 写入数据         uint bytesWritten;         WinUsb_WritePipe(winusbHandle, 0x01, data, (uint)data.Length, out bytesWritten, IntPtr.Zero);          Console.WriteLine("Data written successfully.");     }      public void Close()     {         // 释放WinUSB句柄         WinUsb_Free(winusbHandle);          // 关闭USB设备         deviceHandle.Close();     }      // 创建文件句柄     [DllImport("kernel32.dll", SetLastError = true)]     private static extern SafeFileHandle CreateFile(string lpFileName, FileAccess dwDesiredAccess, FileShare dwShareMode, IntPtr lpSecurityAttributes, FileMode dwCreationDisposition, FileAttributes dwFlagsAndAttributes, IntPtr hTemplateFile); } 

在这个示例中，我们首先定义了WinUSB API的相关函数，并创建了一个WinUSBCommunication类来封装USB设备的通信操作。在构造函数中，我们打开了USB设备并初始化了WinUSB句柄。然后，我们提供了ReadData和WriteData方法来进行数据的读取和写入操作。最后，在Close方法中，我们释放了WinUSB句柄并关闭了USB设备。

请注意，示例中的DevicePath需要根据实际的USB设备路径进行修改，0x81和0x01是读写数据的端点地址，需要根据具体的USB设备端点配置进行修改。

此示例仅为基本示例，实际应用中可能需要根据具体的USB设备配置和通信协议进行相应的调整和优化。