发现USBDeviceAttach的参数UsbInterface为NULL,请版主及各位大哥帮帮忙

  我在跟踪USBDeviceAttach函数时，发现第三个参数LPCUSB_INTERFACE UsbInterface 为NULL,那是什么原因造成的呢？我知道UsbInterface表示USB设备的接口信息。是不是我将USB设备信息写到注册表时没有写对？

我的USB设备的信息如下：
Device Descriptor:
bcdUSB: 0x0200
bDeviceClass: 0x00
bDeviceSubClass: 0x00
bDeviceProtocol: 0x00
bMaxPacketSize0: 0x40(64)
idVendor: 0x3344
idProduct: 0x1122
bcdDevice: 0x0000
iManufacturer: 0x01
iProduct: 0x02
iSerialNumber: 0x03
bNumConfigurations: 0x01

ConnectionStatus: DeviceConnected
Current Configure Value: 0x01
Device Bus Speed: Full
Device Address: 0x02
Open Pipes: 0


#define LME_USB_VENDORID        0x3344
#define LME_USB_PRODUCTID      0x1122

#define DRIVER_SETTINGS \
            sizeof(USB_DRIVER_SETTINGS),  \
            LME_USB_VENDORID,   \
            LME_USB_PRODUCTID,   \
            USB_NO_INFO,   \
            USB_NO_INFO,   \
            USB_NO_INFO,   \
            USB_NO_INFO,   \
            USB_NO_INFO,   \
            USB_NO_INFO,   \
            USB_NO_INFO

BOOL USBInstallDriver(LPCWSTR szDriverLibFile)
{
    BOOL bRc;

    const WCHAR wsUsbDeviceID[] = CLASS_NAME_SZ;
    WCHAR wsSubClassRegKey[sizeof(CLIENT_REGKEY_SZ)+16] = CLIENT_REGKEY_SZ;

    //Set lmeusb device descriptor
    USB_DRIVER_SETTINGS usbDriverSettings = { DRIVER_SETTINGS };

    DWORD dwPortStatusTimeout = GET_PORT_STATUS_TIMEOUT;
    DWORD dwDeviceIdTimeout   = GET_DEVICE_ID_TIMEOUT;
    DWORD dwSoftResetTimeout  = SOFT_RESET_TIMEOUT;
    DWORD dwReadTimeoutMultiplier  = READ_TIMEOUT_MULTIPLIER;
    DWORD dwReadTimeoutConstant    = READ_TIMEOUT_CONSTANT;
    DWORD dwWriteTimeoutMultiplier = WRITE_TIMEOUT_MULTIPLIER;
    DWORD dwWriteTimeoutConstant   = WRITE_TIMEOUT_CONSTANT;

    REG_VALUE_DESCR LmeusbKeyValues[] = {
        TEXT("Dll"),    REG_SZ,    0, (PBYTE)(DRIVER_NAME),
        TEXT("Prefix"), REG_SZ,    0, (PBYTE)(DEVICE_PREFIX),
        GET_PORT_STATUS_TIMEOUT_SZ,  REG_DWORD, 0, (PUCHAR)(&dwPortStatusTimeout),
        GET_DEVICE_ID_TIMEOUT_SZ,    REG_DWORD, 0, (PUCHAR)(&dwDeviceIdTimeout),
        SOFT_RESET_TIMEOUT_SZ,       REG_DWORD, 0, (PUCHAR)(&dwSoftResetTimeout),
        READ_TIMEOUT_MULTIPLIER_SZ,  REG_DWORD, 0, (PUCHAR)(&dwReadTimeoutMultiplier),
        READ_TIMEOUT_CONSTANT_SZ,    REG_DWORD, 0, (PUCHAR)(&dwReadTimeoutConstant),
        WRITE_TIMEOUT_MULTIPLIER_SZ, REG_DWORD, 0, (PUCHAR)(&dwWriteTimeoutMultiplier),
        WRITE_TIMEOUT_CONSTANT_SZ,   REG_DWORD, 0, (PUCHAR)(&dwWriteTimeoutConstant),
        NULL, 0, 0, NULL
    };

    //Register Unique Driver ID, [HKEY_LOCAL_MACHINE\Drivers\USB\ClientDrivers\LMEUSB_Class]
    bRc = RegisterClientDriverID(wsUsbDeviceID);
    if(!bRc) {
        DEBUGMSG(ZONE_ERR, (TEXT("RegisterClientDriverID error:%d\n"),GetLastError()));
        return FALSE;
    }

    //Register relative device info, [HKEY_LOCAL_MACHINE\Drivers\USB\LoadClients\DriverName]
    bRc = RegisterClientSettings(szDriverLibFile,wsUsbDeviceID,NULL,&usbDriverSettings);
    if (!bRc) {
        DEBUGMSG(ZONE_ERR, (TEXT("RegisterClientSettings error:%d\n"), GetLastError()));
        return FALSE;
    }

    //Set our default values to the register
    if (!GetSetKeyValues(wsSubClassRegKey , LmeusbKeyValues, TRUE, TRUE)) {
        MessageBox(NULL,_T("Wrong to Set Registry Values!!"), _T("OK"), MB_OK);
        return FALSE;
    }
    MessageBox(NULL, _T("Enter USBInstallDriver"), _T("OK"), MB_OK);

    return bRc;
}

我遇到了一样的问题，我估计应该是USB_DRIVER_SETTINGS这些参数没设对，但我一直没找到关于CLASS，SUBCLASS，Protoco的参考文档，因为USBview给出的芯片信息也是：
bDeviceClass: 0x00
bDeviceSubClass: 0x00
bDeviceProtocol: 0x00
我试过USB_DRIVER_SETTINGS的后3个参数都设成0x0或者USB_NO_INFO，但USBDeviceAttach的interface都是NULL，加载失败。网上流传甚广的OV511的源码里，把那个CLASS设成0xe，我不知道是否有参考的依据。有人能给点意见吗？