Dear linux-bluetooth community, I am writing a bluetooth client in C which receives notifications from a bluetooth device (server). I am able to call StartNotify() from the bluez api and the Notifying property changes to true. However, I am not sure how I should listen for the notifications, or where. There are several questions: a) How do I provide a callback function to this? b) async or sync method call? Does it matter? c) Do I need the main loop to do this and why? Here's my source code https://pastebin.com/KEGTatsL Is there an example? I tried looking at the different files such as client in bluez kernel source and gatttool source, but I couldn't figure this out. Many thanks, Regards, Mihai