C# Windows API USB IO（winusb.dll）_C#_Winapi_Usb_Hid_Winusb

C# Windows API USB IO（winusb.dll）

c# winapi usb

C# Windows API USB IO（winusb.dll）,c#,winapi,usb,hid,winusb,C#,Winapi,Usb,Hid,Winusb,编辑：这个问题随着时间的推移而演变。基本问题是如何连接到Windows中的USB设备，以及如何在Windows中读取/写入USB设备。最后，我在@benvoigt的帮助下回答了这个问题。我已经编写了一个Hid库，它向Hid USB设备写入和读取数据。它工作得很好。但是，我连接的设备已从Hid访问切换到香草USB。当连接到不同类型的设备时，Hid代码不起作用。我现在的目标是连接到USB接口（与Hid接口相反）并对其进行读/写操作在所有访问USB的平台上，我们必须查询USB设备存在的接口，然后“

编辑：这个问题随着时间的推移而演变。基本问题是如何连接到Windows中的USB设备，以及如何在Windows中读取/写入USB设备。最后，我在@benvoigt的帮助下回答了这个问题。

我已经编写了一个Hid库，它向Hid USB设备写入和读取数据。它工作得很好。但是，我连接的设备已从Hid访问切换到香草USB。当连接到不同类型的设备时，Hid代码不起作用。我现在的目标是连接到USB接口（与Hid接口相反）并对其进行读/写操作

在所有访问USB的平台上，我们必须查询USB设备存在的接口，然后“声明”用于读写的接口。下面是来自LibUsbDotNet示例的一些代码（LibUsb是一个工作的C-USB库，LibUsbDotNet对其进行了包装）

我有一种感觉，LibUsb正在实现C中接口/端点的开放，就像这样（）。这就是它调用Initialize的地方：这就是我的代码失败的地方

有一点信息是，这绝对是一个WinUSB设备。我可以在这里看到：

根据其他人的评论和示例代码，我可以看出我需要使用winusb.dll。我可以调用CreateFile从设备获取句柄。根据我看到的其他示例代码，下一步是调用WinUsb\u Initialize。然而，当我调用它时，我得到一个错误代码8（错误\u内存不足）。这里有一些信息。但是，我不太明白它要我做什么。这是我目前的代码：

    public override async Task InitializeAsync()
    {
        Dispose();

        if (string.IsNullOrEmpty(DeviceId))
        {
            throw new WindowsException($"{nameof(DeviceDefinition)} must be specified before {nameof(InitializeAsync)} can be called.");
        }

        _DeviceHandle = APICalls.CreateFile(DeviceId, (APICalls.GenericWrite | APICalls.GenericRead), APICalls.FileShareRead | APICalls.FileShareWrite, IntPtr.Zero, APICalls.OpenExisting, APICalls.FileAttributeNormal | APICalls.FileFlagOverlapped, IntPtr.Zero);

        var errorCode = Marshal.GetLastWin32Error();

        if (errorCode > 0) throw new Exception($"Write handle no good. Error code: {errorCode}");

        if (_DeviceHandle.IsInvalid) throw new Exception("Device handle no good");

        var isSuccess = WinUsbApiCalls.WinUsb_Initialize(_DeviceHandle, out var interfaceHandle);

        errorCode = Marshal.GetLastWin32Error();

        if (!isSuccess) throw new Exception($"Initialization failed. Error code: {errorCode}");

        IsInitialized = true;

        RaiseConnected();
    }

您可以在此处克隆此回购的分支：。只需运行Usb.Net.WindowsSample项目

我也试过了，得到了完全相同的结果：

public override async Task InitializeAsync()
{
    Dispose();

    if (string.IsNullOrEmpty(DeviceId))
    {
        throw new WindowsException($"{nameof(DeviceDefinition)} must be specified before {nameof(InitializeAsync)} can be called.");
    }

    _DeviceHandle = APICalls.CreateFile(DeviceId, (APICalls.GenericWrite | APICalls.GenericRead), APICalls.FileShareRead | APICalls.FileShareWrite, IntPtr.Zero, APICalls.OpenExisting, APICalls.FileAttributeNormal | APICalls.FileFlagOverlapped, IntPtr.Zero);

    var errorCode = Marshal.GetLastWin32Error();

    if (errorCode > 0) throw new Exception($"Write handle no good. Error code: {errorCode}");

    var interfaceHandle = new IntPtr();

    var pDll = NativeMethods.LoadLibrary(@"C:\GitRepos\Device.Net\src\Usb.Net.WindowsSample\bin\Debug\net452\winusb.dll");

    var pAddressOfFunctionToCall = NativeMethods.GetProcAddress(pDll, "WinUsb_Initialize");

    var initialize = (WinUsb_Initialize)Marshal.GetDelegateForFunctionPointer(pAddressOfFunctionToCall, typeof(WinUsb_Initialize));

    var isSuccess = initialize(_DeviceHandle, ref interfaceHandle);

    errorCode = Marshal.GetLastWin32Error();

    if (!isSuccess) throw new Exception($"Initialization failed. Error code: {errorCode}");

    IsInitialized = true;

    RaiseConnected();
}

[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
private delegate bool WinUsb_Initialize(SafeFileHandle DeviceHandle, ref IntPtr InterfaceHandle);

我坚信该设备的WinUSB实现本身有问题。它可以与LibUsb、UWP和Android等其他库一起使用，但WinUsb似乎不喜欢它。我尝试了这个库：它在同一次调用中也失败了，错误代码相同。它发生故障并获得错误代码8的行如下所示：

我的代码有什么问题？我需要为WinUsb\u初始化调用分配内存吗？

我应该如何使用winusb.dll Windows API？我需要进行哪些API调用来声明和接口或端点以进行读写？

如果有人能给我指出一个简单的C或C样本，它可以读取和写入USB设备，并实际工作，那将对我有很大帮助
WinDBG输出：
*************路径验证摘要*************响应时间（毫秒）位置延迟
srv*符号搜索路径为：srv*可执行搜索路径为：ModLoad: 00000236
157c0000 00000236
157c8000 Usb.Net.WindowsSample.exe ModLoad:00007ffb
62880000 00007ffb
62a61000 ntdll.dll ModLoad: 00007ffb
60F400000007FFB
610d0000 C:\WINDOWS\System32\user32.dll ModLoad:00007ffb
5ed00000 00007ffb
5ed20000
C:\WINDOWS\System32\win32u.dll ModLoad:00007ffb
4e1b0000 00007ffb
4e214000 C:\WINDOWS\SYSTEM32\MSCOREE.DLL ModLoad: 00007ffb
612a0000 00007ffb
612c8000 C:\WINDOWS\System32\GDI32.dll onecore\windows\core\console\open\src\renderer\gdi\invalidate.cpp（121）\conhost.exe！00007FF7169FE2AF：（呼叫者：00007FF7169FF414）返回HR（1）tid（4230）80070578无效窗户把手。ModLoad:00007ffb
60990000 00007ffb
60a42000
C:\WINDOWS\System32\KERNEL32.dll ModLoad:00007ffb
5f000000 00007ffb
5f192000 C:\WINDOWS\System32\gdi32full.dll ModLoad: 00007ffb
60d90000 00007ffb
60f03000 C:\WINDOWS\System32\MSCTF.dll ModLoad:00007ffb
5ed80000 00007ffb
5eff3000
C:\WINDOWS\System32\KERNELBASE.dll ModLoad:00007ffb
60610000 00007ffb
606d2000 C:\WINDOWS\System32\OLEAUT32.dll ModLoad: 00007ffb
60f10000 00007ffb
60f3d000C:\WINDOWS\System32\IMM32.DLL
*************路径验证摘要*************响应时间（毫秒）位置延迟
srv*符号搜索路径为：srv*可执行搜索路径为：ModLoad: 00007ff7
169f0000 00007ff7
16a8f000 conhost.exe ModLoad: 00007ffb
613400000 00007ffb
62780000 C:\WINDOWS\System32\shell32.dll ModLoad:00007ffb
5cd80000 00007ffb
5cda9000
C:\WINDOWS\system32\dwmapi.dll ModLoad:00007ffb
62880000 00007ffb
62a61000 ntdll.dll ModLoad:00007ffb
5fcc0000 00007ffb
5fd09000 C:\WINDOWS\System32\cfgmgr32.dll ModLoad: 00007ffb
5F53000007FFB
5fc3d000
C:\WINDOWS\System32\WINDOWS.storage.dll onecore\windows\core\console\open\src\renderer\gdi\invalidate.cpp（121）\conhost.exe！00007FF7169FE2AF：（呼叫者：00007FF7169FF414）返回HR（2）tid（4230）80070578无效窗户把手。ModLoad:00007ffb
6114000007FFB
61191000
C:\WINDOWS\System32\shlwapi.dll ModLoad:00007ffb
60990000 00007ffb
60a42000 C:\WINDOWS\System32\KERNEL32.DLL ModLoad: 00007ffb
5ec30000 00007ffb
5ec41000
C:\WINDOWS\System32\kernel.appcore.dll ModLoad:00007ffb
5ed80000 00007ffb
5eff3000 C:\WINDOWS\System32\KERNELBASE.dll ModLoad: 00007ffb
5ec10000 00007ffb
5ec2f000 C:\WINDOWS\System32\profapi.dll ModLoad:00007ffb
5ebc0000 00007ffb
5ec0c000
C:\WINDOWS\System32\powrpof.dll ModLoad:00007ffb
5ebb0000 00007ffb
5ebba000 C:\WINDOWS\System32\FLTLIB.DLL ModLoad: 00007ffb
5F49000 00007ffb
5f52f000
C:\WINDOWS\System32\msvcp_win.dll ModLoad:00007ffb
5f1a0000 00007ffb
5f29a000 C:\WINDOWS\System32\ucrtbase.dll ModLoad: 00007ffb
606e0000 00007ffb
60789000 C:\WINDOWS\System32\shcore.dll ModLoad:00007ffb
4e290000 00007ffb
4e4f9000
C:\WINDOWS\WinSxS\
public override async Task InitializeAsync() { Dispose(); if (string.IsNullOrEmpty(DeviceId)) { throw new WindowsException($"{nameof(DeviceDefinition)} must be specified before {nameof(InitializeAsync)} can be called."); } _DeviceHandle = APICalls.CreateFile(DeviceId, (APICalls.GenericWrite | APICalls.GenericRead), APICalls.FileShareRead | APICalls.FileShareWrite, IntPtr.Zero, APICalls.OpenExisting, APICalls.FileAttributeNormal | APICalls.FileFlagOverlapped, IntPtr.Zero); var errorCode = Marshal.GetLastWin32Error(); if (errorCode > 0) throw new Exception($"Write handle no good. Error code: {errorCode}"); var interfaceHandle = new IntPtr(); var pDll = NativeMethods.LoadLibrary(@"C:\GitRepos\Device.Net\src\Usb.Net.WindowsSample\bin\Debug\net452\winusb.dll"); var pAddressOfFunctionToCall = NativeMethods.GetProcAddress(pDll, "WinUsb_Initialize"); var initialize = (WinUsb_Initialize)Marshal.GetDelegateForFunctionPointer(pAddressOfFunctionToCall, typeof(WinUsb_Initialize)); var isSuccess = initialize(_DeviceHandle, ref interfaceHandle); errorCode = Marshal.GetLastWin32Error(); if (!isSuccess) throw new Exception($"Initialization failed. Error code: {errorCode}"); IsInitialized = true; RaiseConnected(); } [UnmanagedFunctionPointer(CallingConvention.Cdecl)] private delegate bool WinUsb_Initialize(SafeFileHandle DeviceHandle, ref IntPtr InterfaceHandle);

public static class Kernel32APICalls { //Abridged #region Kernel32 [DllImport("kernel32.dll", SetLastError = true)] public static extern SafeFileHandle CreateFile(string lpFileName, uint dwDesiredAccess, uint dwShareMode, IntPtr lpSecurityAttributes, uint dwCreationDisposition, uint dwFlagsAndAttributes, IntPtr hTemplateFile); #endregion } public static partial class WinUsbApiCalls { public const uint DEVICE_SPEED = 1; public const byte USB_ENDPOINT_DIRECTION_MASK = 0X80; public const int WritePipeId = 0x80; /// <summary> /// Not sure where this constant is defined... /// </summary> public const int DEFAULT_DESCRIPTOR_TYPE = 0x01; [DllImport("winusb.dll", SetLastError = true)] public static extern bool WinUsb_ControlTransfer(IntPtr InterfaceHandle, WINUSB_SETUP_PACKET SetupPacket, byte[] Buffer, uint BufferLength, ref uint LengthTransferred, IntPtr Overlapped); [DllImport("winusb.dll", SetLastError = true, CharSet = CharSet.Auto)] public static extern bool WinUsb_GetAssociatedInterface(SafeFileHandle InterfaceHandle, byte AssociatedInterfaceIndex, out SafeFileHandle AssociatedInterfaceHandle); [DllImport("winusb.dll", SetLastError = true)] public static extern bool WinUsb_GetDescriptor(SafeFileHandle InterfaceHandle, byte DescriptorType, byte Index, ushort LanguageID, out USB_DEVICE_DESCRIPTOR deviceDesc, uint BufferLength, out uint LengthTransfered); [DllImport("winusb.dll", SetLastError = true)] public static extern bool WinUsb_Free(SafeFileHandle InterfaceHandle); [DllImport("winusb.dll", SetLastError = true)] public static extern bool WinUsb_Initialize(SafeFileHandle DeviceHandle, out SafeFileHandle InterfaceHandle); [DllImport("winusb.dll", SetLastError = true)] public static extern bool WinUsb_QueryDeviceInformation(IntPtr InterfaceHandle, uint InformationType, ref uint BufferLength, ref byte Buffer); [DllImport("winusb.dll", SetLastError = true)] public static extern bool WinUsb_QueryInterfaceSettings(SafeFileHandle InterfaceHandle, byte AlternateInterfaceNumber, out USB_INTERFACE_DESCRIPTOR UsbAltInterfaceDescriptor); [DllImport("winusb.dll", SetLastError = true)] public static extern bool WinUsb_QueryPipe(SafeFileHandle InterfaceHandle, byte AlternateInterfaceNumber, byte PipeIndex, out WINUSB_PIPE_INFORMATION PipeInformation); [DllImport("winusb.dll", SetLastError = true)] public static extern bool WinUsb_ReadPipe(SafeFileHandle InterfaceHandle, byte PipeID, byte[] Buffer, uint BufferLength, out uint LengthTransferred, IntPtr Overlapped); [DllImport("winusb.dll", SetLastError = true)] public static extern bool WinUsb_SetPipePolicy(IntPtr InterfaceHandle, byte PipeID, uint PolicyType, uint ValueLength, ref uint Value); [DllImport("winusb.dll", SetLastError = true)] public static extern bool WinUsb_WritePipe(SafeFileHandle InterfaceHandle, byte PipeID, byte[] Buffer, uint BufferLength, out uint LengthTransferred, IntPtr Overlapped); }