Managing irp_mj_create and irp_mg_close using bufferedIO

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Windows

driver

//Switch cases from my main file

case  IOCTL_READ_BUFFERED: // Reads data from the driver
    {

        DbgPrint("Driver_Info: IOCTL_READ_BUFFERED is invoked.");
        outBuffer  = Irp->AssociatedIrp.SystemBuffer;
        outLength = ioStackLocation->Parameters.DeviceIoControl.OutputBufferLength;
        Irp->IoStatus.Information = strlen(outBuffer) + 1;

        if(outBuffer){
            driverExtension = ExAllocatePoolWithTag(NonPagedPool, sizeof (FOO_DRIVER_EXTENSION), BUFFERTAG);
            // page

            RtlZeroMemory(driverExtension->buffer, BUFFERSIZE); //reinitialization
            RtlCopyBytes(driverExtension->buffer,outBuffer, outLength); 
                    DbgPrint("Read Buffered: ");
                    DbgPrint("%s \n",driverExtension->buffer);
        }

        break;
    }


case  IOCTL_WRITE_BUFFERED: // Writes data into the driver
    {
        DbgPrint("Driver_Info: IOCTL_WRITE_BUFFERED is invoked.");
        inBuffer  = Irp->AssociatedIrp.SystemBuffer;
        inLength = ioStackLocation->Parameters.DeviceIoControl.InputBufferLength;
        Irp->IoStatus.Information = strlen(inBuffer) + 1;

        if(inBuffer){
            driverExtension = ExAllocatePoolWithTag(NonPagedPool, sizeof (FOO_DRIVER_EXTENSION), BUFFERTAG);
            // page

            RtlZeroMemory(driverExtension->buffer, BUFFERSIZE); //reinitialization
            RtlCopyBytes(driverExtension->buffer,inBuffer, inLength); 
                    DbgPrint("Write Buffered: ");
                    DbgPrint("%s \n",driverExtension->buffer);
        }
        break;
    }

//The readDrive File

hDevice = CreateFile(
                "\\\\.\\FETCH_DRIVER_VERSION",
             GENERIC_READ | GENERIC_WRITE, 0, NULL,
             OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);

if(!DeviceIoControl(
             hDevice, IOCTL_READ_BUFFERED,
            NULL, 0, &read, sizeof(read), &nb, NULL)){
    printf("error in deviceioControl: (%d)\n", GetLastError());
    return;
}

else{
    printf("check debugprint now!\n");
    printf("read: %s \n", read );
}

I want the string i inputted into writeDriver to be displayed in the readDriver.exe. but when I run the readDriver.exe file, its an empty string. whats wrong with this?

It's my first day of training today and my first time doing device driver dev. And i just cant understand where to find the error