vid29-05驱动代码

vid29-05驱动代码是一段用于控制vid29-05设备的代码。vid29-05是一种设备，可以通过代码对其进行驱动和控制。

这段代码通常包括了设备的初始化和配置参数的设置。首先，我们需要初始化vid29-05设备，通常会初始化设备的硬件接口、寄存器和电源等。接下来，我们需要设置vid29-05设备的工作模式和传输速率等参数，以满足具体的应用需求。

在设备设置完成后，接下来的代码部分通常是对设备进行数据传输和通信。包括读取和写入设备的寄存器值，发送和接收数据等。这些代码会调用设备驱动库提供的函数来实现对设备的控制和操作，具体的操作可以根据实际需求进行定义。

最后，我们可以根据需要对设备进行操作和控制，比如说读取和写入数据，监测设备状态等。并且在代码的最后，我们需要进行设备的停止和释放操作，以确保设备正常关闭。

总之，vid29-05驱动代码是用来控制和操作vid29-05设备的代码，通过设置设备参数、传输数据和进行控制操作来满足具体的需求。这段代码的编写需要根据实际应用来确定，以实现对设备的有效管理和控制。

相关问题

WDF驱动代码实现查询USB总线驱动上的所有驱动的PID和VID信息

要查询USB总线驱动上的所有驱动的PID和VID信息，可以使用Windows驱动程序开发工具包（WDK）中的函数来遍历设备树并获取设备属性。以下是WDF驱动代码实现查询USB总线驱动上的所有驱动的PID和VID信息的步骤：

1. 获取USB总线的设备接口GUID和设备对象

LPGUID usbDeviceGuid = (LPGUID)&GUID_DEVINTERFACE_USB_DEVICE;
WDFDEVICE usbDevice = WdfDeviceCreateDeviceInterface(
    Device,
    usbDeviceGuid,
    NULL);

2. 遍历设备树并获取设备属性

WDFDEVICE usbChildDevice = WdfChildListRetrieveNextDevice(
    ChildList,
    NULL);
while (usbChildDevice != NULL)
{
    UNICODE_STRING deviceInstanceId;
    WdfStringCreate(&deviceInstanceId, NULL);

    // 获取设备实例ID
    if (WdfDeviceAllocAndQueryProperty(usbChildDevice,
        DevicePropertyHardwareID,
        NonPagedPoolNx,
        WDF_NO_OBJECT_ATTRIBUTES,
        &deviceInstanceId))
    {
        // 解析设备实例ID
        PWSTR deviceId = deviceInstanceId.Buffer;
        while (*deviceId)
        {
            if (wcsstr(deviceId, L"USB\\") == deviceId)
            {
                // 获取PID和VID信息
                ULONG pid, vid;
                if (swscanf(deviceId, L"USB\\VID_%04X&PID_%04X", &vid, &pid) == 2)
                {
                    // 处理PID和VID信息
                }
            }

            // 指向下一个设备实例ID
            deviceId += wcslen(deviceId) + 1;
        }
    }

    // 获取下一个设备
    usbChildDevice = WdfChildListRetrieveNextDevice(
        ChildList,
        usbChildDevice);
}

这样就可以遍历所有USB总线驱动上的设备，并获取它们的PID和VID信息。注意，此代码仅适用于USB总线设备，对于其他类型的设备可能需要使用不同的接口和属性。

写个Windows环境的USB驱动代码

以下是一个简单的 Windows 环境下的 USB 驱动程序，使用 Windows Driver Framework (WDF) 实现：

#include <ntddk.h>
#include <wdf.h>

#define MY_USB_DEVICE_VID 0x1234
#define MY_USB_DEVICE_PID 0x5678

DECLARE_CONST_UNICODE_STRING(device_name, L"\\Device\\MyUSBDevice");
DECLARE_CONST_UNICODE_STRING(symbolic_link_name, L"\\DosDevices\\MyUSBDevice");

NTSTATUS MyUsbEvtDeviceAdd(IN WDFDRIVER Driver, IN PWDFDEVICE_INIT DeviceInit) {
    NTSTATUS status;
    WDFDEVICE device;
    PDEVICE_CONTEXT context;
    UNREFERENCED_PARAMETER(Driver);

    status = WdfDeviceCreate(&DeviceInit, WDF_NO_OBJECT_ATTRIBUTES, &device);
    if (!NT_SUCCESS(status)) {
        KdPrint(("MyUSBDevice: WdfDeviceCreate failed with status 0x%x.\n", status));
        return status;
    }

    context = GetDeviceContext(device);

    status = WdfDeviceCreateSymbolicLink(device, &symbolic_link_name);
    if (!NT_SUCCESS(status)) {
        KdPrint(("MyUSBDevice: WdfDeviceCreateSymbolicLink failed with status 0x%x.\n", status));
        return status;
    }

    KdPrint(("MyUSBDevice: device created successfully.\n"));

    return status;
}

NTSTATUS MyUsbEvtDevicePrepareHardware(IN WDFDEVICE Device, IN WDFCMRESLIST ResourcesRaw, IN WDFCMRESLIST ResourcesTranslated) {
    NTSTATUS status;
    UNREFERENCED_PARAMETER(ResourcesRaw);
    UNREFERENCED_PARAMETER(ResourcesTranslated);

    status = MyUsbDeviceInit(Device);
    if (!NT_SUCCESS(status)) {
        KdPrint(("MyUSBDevice: MyUsbDeviceInit failed with status 0x%x.\n", status));
        return status;
    }

    KdPrint(("MyUSBDevice: device prepared successfully.\n"));

    return status;
}

NTSTATUS MyUsbEvtDeviceReleaseHardware(IN WDFDEVICE Device, IN WDFCMRESLIST ResourcesTranslated) {
    UNREFERENCED_PARAMETER(Device);
    UNREFERENCED_PARAMETER(ResourcesTranslated);

    MyUsbDeviceDeinit(Device);

    KdPrint(("MyUSBDevice: device released successfully.\n"));

    return STATUS_SUCCESS;
}

NTSTATUS MyUsbEvtDeviceD0Entry(IN WDFDEVICE Device, IN WDF_POWER_DEVICE_STATE PreviousState) {
    UNREFERENCED_PARAMETER(PreviousState);

    NTSTATUS status = MyUsbDeviceStart(Device);
    if (!NT_SUCCESS(status)) {
        KdPrint(("MyUSBDevice: MyUsbDeviceStart failed with status 0x%x.\n", status));
        return status;
    }

    KdPrint(("MyUSBDevice: device D0 entry successful.\n"));

    return STATUS_SUCCESS;
}

VOID MyUsbEvtDeviceD0Exit(IN WDFDEVICE Device, IN WDF_POWER_DEVICE_STATE TargetState) {
    UNREFERENCED_PARAMETER(TargetState);

    MyUsbDeviceStop(Device);

    KdPrint(("MyUSBDevice: device D0 exit successful.\n"));

    return;
}

NTSTATUS MyUsbEvtDeviceQueryStop(IN WDFDEVICE Device) {
    UNREFERENCED_PARAMETER(Device);

    KdPrint(("MyUSBDevice: device query stop.\n"));

    return STATUS_SUCCESS;
}

VOID MyUsbEvtDeviceSurpriseRemove(IN WDFDEVICE Device) {
    UNREFERENCED_PARAMETER(Device);

    KdPrint(("MyUSBDevice: device surprise remove.\n"));

    return;
}

NTSTATUS DriverEntry(IN PDRIVER_OBJECT DriverObject, IN PUNICODE_STRING RegistryPath) {
    NTSTATUS status;
    WDF_DRIVER_CONFIG config;
    PWDFDEVICE_INIT deviceInit = NULL;

    KdPrint(("MyUSBDevice: driver entry.\n"));

    WDF_DRIVER_CONFIG_INIT(&config, MyUsbEvtDeviceAdd);
    status = WdfDriverCreate(DriverObject, RegistryPath, WDF_NO_OBJECT_ATTRIBUTES, &config, WDF_NO_HANDLE);
    if (!NT_SUCCESS(status)) {
        KdPrint(("MyUSBDevice: WdfDriverCreate failed with status 0x%x.\n", status));
        return status;
    }

    deviceInit = WdfControlDeviceInitAllocate(config.DriverGlobals, &SDDL_DEVOBJ_SYS_ALL_ADM_RWX_WORLD_RW_RES_R);
    if (deviceInit == NULL) {
        KdPrint(("MyUSBDevice: WdfControlDeviceInitAllocate failed.\n"));
        return STATUS_INSUFFICIENT_RESOURCES;
    }

    status = WdfDeviceInitAssignName(deviceInit, &device_name);
    if (!NT_SUCCESS(status)) {
        KdPrint(("MyUSBDevice: WdfDeviceInitAssignName failed with status 0x%x.\n", status));
        return status;
    }

    status = WdfDeviceCreate(&deviceInit, WDF_NO_OBJECT_ATTRIBUTES, WDF_NO_HANDLE);
    if (!NT_SUCCESS(status)) {
        KdPrint(("MyUSBDevice: WdfDeviceCreate failed with status 0x%x.\n", status));
        return status;
    }

    WdfControlFinishInitializing(WdfDeviceWdmGetDeviceObject(deviceInit));

    KdPrint(("MyUSBDevice: driver loaded successfully.\n"));

    return status;
}

NTSTATUS MyUsbDeviceInit(IN WDFDEVICE Device) {
    NTSTATUS status;
    WDF_USB_DEVICE_INFORMATION info;
    PDEVICE_CONTEXT context;

    context = GetDeviceContext(Device);

    status = WdfUsbTargetDeviceCreate(Device, WDF_NO_OBJECT_ATTRIBUTES, &context->UsbDevice);
    if (!NT_SUCCESS(status)) {
        KdPrint(("MyUSBDevice: WdfUsbTargetDeviceCreate failed with status 0x%x.\n", status));
        return status;
    }

    WDF_USB_DEVICE_INFORMATION_INIT(&info);

    status = WdfUsbTargetDeviceRetrieveInformation(context->UsbDevice, &info);
    if (!NT_SUCCESS(status)) {
        KdPrint(("MyUSBDevice: WdfUsbTargetDeviceRetrieveInformation failed with status 0x%x.\n", status));
        return status;
    }

    if (info.VendorId != MY_USB_DEVICE_VID || info.ProductId != MY_USB_DEVICE_PID) {
        KdPrint(("MyUSBDevice: unsupported device connected.\n"));
        return STATUS_DEVICE_CONFIGURATION_ERROR;
    }

    KdPrint(("MyUSBDevice: device initialized successfully.\n"));

    return STATUS_SUCCESS;
}

VOID MyUsbDeviceDeinit(IN WDFDEVICE Device) {
    PDEVICE_CONTEXT context;

    context = GetDeviceContext(Device);

    if (context->UsbDevice != NULL) {
        WdfObjectDelete(context->UsbDevice);
        context->UsbDevice = NULL;
    }

    KdPrint(("MyUSBDevice: device deinitialized successfully.\n"));

    return;
}

NTSTATUS MyUsbDeviceStart(IN WDFDEVICE Device) {
    PDEVICE_CONTEXT context;

    context = GetDeviceContext(Device);

    KdPrint(("MyUSBDevice: device started successfully.\n"));

    return STATUS_SUCCESS;
}

VOID MyUsbDeviceStop(IN WDFDEVICE Device) {
    UNREFERENCED_PARAMETER(Device);

    KdPrint(("MyUSBDevice: device stopped successfully.\n"));

    return;
}

该程序包含了 USB 驱动程序的各个事件处理函数，其中，`MyUsbEvtDeviceAdd` 在设备连接时调用，`MyUsbEvtDevicePrepareHardware` 在设备准备工作时调用，`MyUsbEvtDeviceReleaseHardware` 在设备释放时调用，`MyUsbEvtDeviceD0Entry` 在设备进入 D0 状态时调用，`MyUsbEvtDeviceD0Exit` 在设备退出 D0 状态时调用，`MyUsbEvtDeviceQueryStop` 处理设备停止请求，`MyUsbEvtDeviceSurpriseRemove` 处理设备意外移除事件。

在 `DriverEntry` 函数中，使用了 WDF 驱动框架的接口函数创建了设备对象和控制设备对象，并注册了设备事件处理函数。在设备事件处理函数中，实现了设备的初始化、启动、停止和释放等功能。