windows驱动开发34.kmdf驱动框架最小模板

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

DRIVER_INITIALIZE DriverEntry;
EVT_WDF_DRIVER_UNLOAD MyEvtDriverUnload;  // 卸载函数（KMDF 风格）
EVT_WDF_DRIVER_DEVICE_ADD MyEvtDeviceAdd; // 必须定义，但可以不创建设备

// 驱动卸载回调
VOID MyEvtDriverUnload(_In_ WDFDRIVER Driver)
{
    UNREFERENCED_PARAMETER(Driver);
    KdPrint(("qi: KMDF Driver Unload!\n"));
}

// 添加设备回调（必须提供，即使什么都不做）
NTSTATUS MyEvtDeviceAdd(
    _In_ WDFDRIVER Driver,
    _Inout_ PWDFDEVICE_INIT DeviceInit
)
{
    UNREFERENCED_PARAMETER(Driver);
    UNREFERENCED_PARAMETER(DeviceInit);
    KdPrint(("qi: KMDF DeviceAdd called\n"));
    return STATUS_SUCCESS;
}

// KMDF 驱动入口函数
NTSTATUS DriverEntry(
    _In_ PDRIVER_OBJECT  DriverObject,
    _In_ PUNICODE_STRING RegistryPath
)
{
    WDF_DRIVER_CONFIG config;
    NTSTATUS status;
KdPrint(("qi: KMDF DriverEntry\n"));

WDF_DRIVER_CONFIG_INIT(&config, MyEvtDeviceAdd);
config.EvtDriverUnload = MyEvtDriverUnload;

status = WdfDriverCreate(
    DriverObject,
    RegistryPath,
    WDF_NO_OBJECT_ATTRIBUTES,
    &config,
    WDF_NO_HANDLE
);

if (!NT_SUCCESS(status)) {
    KdPrint(("qi: WdfDriverCreate failed: 0x%x\n", status));
}

return status;
}