Read all input from QSerialPort - qt

Question

I am receiving data in this shape:
Q1\n
9.70E-6\n
OK>
from an external device via QSerialPort, but with my reading routine
QString request = "Hello";
qDebug() << "TransAction started!";
QByteArray requestData = request.toLocal8Bit();
qDebug() << "Writing data: " << requestData;
serial->write(requestData);
qDebug() << "Data written";
if(serial->waitForBytesWritten(waitTimeout))
{
if(serial->waitForReadyRead(waitTimeout))
{
qDebug() << "Waiting for data!";
QByteArray responseData = serial->readAll();
while(serial->waitForReadyRead(100))
responseData += serial->readAll();
responseData.replace('\n', ' ');
QString response(responseData);
QByteArray response_arr = response.toLocal8Bit();
qDebug() << "Response is: " << response_arr.toHex();
emit this->response(response);
}
else
{
qDebug() << "Wait read response timeout";
emit this->timeout(tr("Wait read response timeout %1").arg(QTime::currentTime().toString()));
}
}
else
{
qDebug() << "Wait write request timeout!";
emit this->timeout(tr("Wait write request timeout %1").arg(QTime::currentTime().toString()));
}
I only get
Q1
as response. How can I modify my code such that I am able to read all input data?
Update:
When testing it with the serial port script described here: https://stackoverflow.com/a/7654527/2546099, everything works. Apparently the problem is that the qt-version stops reading after the first line break. This problem consists also if I add
char buffer[1000];
for(int i = 0; i < 1000; i++)
{
int tmp = serial->read(buffer, 1000);
if(tmp > 0)
qDebug() << buffer;
}
directly after the line
qDebug() << "Waiting for data!";
Then I still only get the first line (without the \n). Changing times does not change the received data.

Answer 1

The answer to my problem is (partly) described in this question: External vs internal declaration of QByteArray. My problem (why I did not receive any further data) was that I did not send a \x00D after the input line, thus the device just echoed my input, and was waiting for the Enter afterwards. After the input looks exactly as the first line, I misunderstood it for just getting the first line, and nothing else.