基于kernel32.dll的C# .NET USB打印机通信异常求助

我尝试很久都没法实现通过USB和打印机通信，网上相关的解决方案很少。我的目标是实现USB与打印机的双向通信，发送指令并接收返回数据。目前用第三方工具PrintFile可以成功给打印机发送二进制文件，而且通过Wireshark-usbcap能抓到打印机的响应包，说明打印机本身支持USB响应请求。

我参考了ChatGPT和Stack Overflow的相关帖子，基于生成的代码修改后，当前代码如下：

[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
public static extern IntPtr CreateFile(
    [MarshalAs(UnmanagedType.LPTStr)] string filename,
    UInt32 desiredaccess, UInt32 sharemode, IntPtr securityattributes,
    UInt32 creationdisposition, UInt32 flagsandattributes, 
    IntPtr templatefile);

[DllImport("kernel32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool CloseHandle(IntPtr hObject);

[DllImport("kernel32.dll", SetLastError = true)]
public static extern bool WriteFile(IntPtr hFile, byte[] lpBuffer,
    uint nNumberOfBytesToWrite, out uint lpNumberOfBytesWritten,
    [In] ref System.Threading.NativeOverlapped lpOverlapped);

[DllImport("kernel32.dll", SetLastError = true)]
public static extern bool ReadFile(IntPtr hFile, [Out] byte[] lpBuffer,
    uint nNumberOfBytesToRead, out uint nNumberOfBytesRead, [In] ref System.Threading.NativeOverlapped lpOverlapped);

public static bool WriteToPort(string port, ref byte[] data)
{
    IntPtr hPrinter = IntPtr.Zero;
    bool success = true;
    uint bytesWritten = 0;

    hPrinter = CreateFile(port,
                        (UInt32)(FileAccess.ReadWrite),
                        (UInt32)(FileShare.ReadWrite),
                        IntPtr.Zero,
                        (UInt32)FileMode.OpenOrCreate,
                        (UInt32)(FileAttribute.Normal),
                        IntPtr.Zero);

    System.Threading.NativeOverlapped lpOverlapped = new System.Threading.NativeOverlapped();
    success = WriteFile(hPrinter, data, (uint)data.Length, out bytesWritten, ref lpOverlapped);

    CloseHandle(hPrinter);

    return success && bytesWritten > 0;
}

调用WriteToPort时，端口参数传的是"USB001"，数据是用于请求信息的4字节数组。运行代码后，bytesWritten显示为4，success也为true，但打印机完全没反应（正常接收指令时屏幕会亮起），而且Wireshark-usbcap抓不到 outgoing数据包。但用PrintFile工具时，能正常抓到双向数据包。

内容的提问来源于stack exchange，提问作者Robin