Using QSocketNotifier to select on a char device.

Question

I wrote a char device driver and am now writing a QT \"wrapper\" which part of it is to get a signal to fire when the device becomes readable via the poll mechanism. I had

Answer 1

Your QSocketNotifer gets destroyed as soon as that if block ends. It doesn't stand a chance of reporting anything.

You must keep that socket notifier alive as long as you want that file to be monitored. The simplest way of doing that is probably keeping a QSocketNotifer* member in one of your classes.