大家帮帮我

我是一名驱动程序的初学者，我做了一个USB驱动程序，可是一进行读写电脑就重启，头都大了。大家谁知道这样的问题，快帮帮我
我的驱动里的Write 函数是这样的
NTSTATUS TPUSBDevice::Write(KIrp I)
{
    T.Trace(TraceInfo, __FUNCTION__"++.  IRP %p\n", I);

    NTSTATUS status = STATUS_SUCCESS;

    // TODO: Validate the parameters of the IRP.  Replace "FALSE"
    //         in the following line with error checking code that
    //         evaulates to TRUE if the request is not valid.
    if (FALSE)
    {
        status = STATUS_INVALID_PARAMETER;
        I.Information() = 0;
        I.PnpComplete(status);

        T.Trace(TraceWarning, __FUNCTION__"--.  IRP %p, STATUS %x\n", I, status);

        return status;
    }

    // Always ok to write 0 elements
    if (I.WriteSize() == 0)
    {
        I.Information() = 0;
        I.PnpComplete(this, status);

        T.Trace(TraceInfo, __FUNCTION__"--.  IRP %p, STATUS %x\n", I, status);

        return status;
    }

    KMemory Mem(I.Mdl());    // Declare a memory object

    // Get a pointer to the caller's buffer.  Note that this
    // routine is safe on all platforms.
    PUCHAR pBuffer = (PUCHAR) Mem.MapToSystemSpace();
    ULONG dwTotalSize = I.WriteSize(CURRENT);
    ULONG dwMaxSize = PIPE02.MaximumTransferSize();
    if ( dwTotalSize > dwMaxSize )
    {
        ASSERT(dwMaxSize);
        dwTotalSize = dwMaxSize;
    }

    ULONG bytesSent = 0;
    // TODO: At this point, perform any processing for IRP_MJ_WRITE
    //         To satisfy the write now, transfer data to the driver
    //         from the caller's buffer at "pBuffer".  Then, indicate
    //         how much data was transferred:
     PURB pUrb = PIPE02.BuildBulkTransfer(
             Mem,          // Where is data coming from?
             dwTotalSize,  // How much data to write?
             FALSE,        // direction (FALSE = OUT)
              NULL          // Link to next URB
               );
        if(pUrb !=NULL)
       {
            status = PIPE02.SubmitUrb(pUrb,NULL,NULL,100);
               if(status == STATUS_SUCCESS)
              {
                   bytesSent = pUrb->UrbBulkOrInterruptTransfer.TransferBufferLength;
              }

          delete pUrb;
           }

    I.Information() = bytesSent;

    I.PnpComplete(this, status);

    T.Trace(TraceInfo, __FUNCTION__"--.  IRP %p, STATUS %x\n", I, status);

    return status;
}