Thread: How to make C program to listen to Operating System Signals?

Hi, I'm creating a simple Qt4 app, the app listens for usb device connectivity i'e whether it is attached or detached. I'm able to do this through polling, running infinite loop. May be this is not the right approach, want to try it out it in a different way where the operating system signals my app about the connectivity. How can this be done under Linux platform?

Cross-posted

Originally Posted by halfrobinhood

Hi, I'm creating a simple Qt4 app, the app listens for usb device connectivity i'e whether it is attached or detached. I'm able to do this through polling, running infinite loop. May be this is not the right approach, want to try it out it in a different way where the operating system signals my app about the connectivity. How can this be done under Linux platform?

Maybe with dbus ?