1. 建立USB目标

使用方法WdfUsbTargetDeviceCreate来建立USB设备。

NTSTATUS WdfUsbTargetDeviceCreate(  [in]           WDFDEVICE              Device,  [in, optional] PWDF_OBJECT_ATTRIBUTES Attributes,  [out]          WDFUSBDEVICE           *UsbDevice);

(1) Context

为了针对USB设备，我们需要建立一个带USBDEVICE成员的结构指针。

typedef struct _DEVICE_CONTEXT {  WDFUSBDEVICE      UsbDevice;  WDFUSBINTERFACE   UsbInterface;} DEVICE_CONTEXT, *PDEVICE_CONTEXT;

(2) Create Usb

status = WdfUsbTargetDeviceCreate(Device,                                    WDF_NO_OBJECT_ATTRIBUTES,                                    &pDeviceContext->UsbDevice);

2. 配置他

使用WdfUsbTargetDeviceSelectConfig方法来配置usb设备。

NTSTATUS WdfUsbTargetDeviceSelectConfig(  [in]           WDFUSBDEVICE                         UsbDevice,  [in, optional] PWDF_OBJECT_ATTRIBUTES               PipeAttributes,  [in, out]      PWDF_USB_DEVICE_SELECT_CONFIG_PARAMS Params);

(1) 初始化USB配置

使用WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_SINGLE_INTERFACE

VOID WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_SINGLE_INTERFACE(  _Out_ PWDF_USB_DEVICE_SELECT_CONFIG_PARAMS Params);

初始化WDF_USB_DEVICE_SELECT_CONFIG_PARAMS结构变量地址。

WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_SINGLE_INTERFACE(&configParams);

(2) 完成配置

status = WdfUsbTargetDeviceSelectConfig(pDeviceContext->UsbDevice,                                        WDF_NO_OBJECT_ATTRIBUTES,                                        &configParams);

附：代码(EvtDevicePrepareHardware事件)

NTSTATUSEvtDevicePrepareHardware(    IN WDFDEVICE    Device,    IN WDFCMRESLIST ResourceList,    IN WDFCMRESLIST ResourceListTranslated    ){    NTSTATUS                            status;    PDEVICE_CONTEXT                     pDeviceContext;    WDF_USB_DEVICE_SELECT_CONFIG_PARAMS configParams;    UNREFERENCED_PARAMETER(ResourceList);    UNREFERENCED_PARAMETER(ResourceListTranslated);    pDeviceContext = GetDeviceContext(Device);    //    // Create the USB device if it is not already created.    //    if (pDeviceContext->UsbDevice == NULL) {        status = WdfUsbTargetDeviceCreate(Device,                                    WDF_NO_OBJECT_ATTRIBUTES,                                    &pDeviceContext->UsbDevice);        if (!NT_SUCCESS(status)) {            KdPrint(("WdfUsbTargetDeviceCreate failed 0x%x\n", status));                    return status;        }    }        WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_SINGLE_INTERFACE(&configParams);    status = WdfUsbTargetDeviceSelectConfig(pDeviceContext->UsbDevice,                                        WDF_NO_OBJECT_ATTRIBUTES,                                        &configParams);    if(!NT_SUCCESS(status)) {        KdPrint(("WdfUsbTargetDeviceSelectConfig failed 0x%x\n", status));        return status;    }    pDeviceContext->UsbInterface =                  configParams.Types.SingleInterface.ConfiguredUsbInterface;    return status;}