c++ - Is there a Qt solution for detecting USB events (insertion and removal)?

Question

As some other people already asked here some years ago, I want to be able to detect in a Qt application when a pendrive/datatraveler is plugged and when it is unplugged in my system (both in Linux Ubuntu and Embedded Linux).

I searched in SO and I noticed that most answers not only were very outdated (from 2010 for example), but all solutions somehow involved "non-Qt solutions" to these problem: either platform specific or usage of external libraries such as udev and DBus.

What I want to know first of all is if there is a specific Qt solution for this, i.e. a way to do this without requiring adding external libs or platform specific codes, and how could I use it. Preferentially it should already be available in Qt 4.8. If there is no Qt solution, then a Qt-based library would be acceptable.

Add: Search results:

• USB Programming with Qt: Suggests libusb and WinUSB API
• Detecting USB notification in Qt on windows: Windows only
• How do I detect usb drive insertion in Linux?: Suggests libudev
• How to get USB notifications under linux / Qt?: Suggests DBus
• How to know when a new USB storage device is connected in Qt?: Windows only
• How to detect USB device disconnect under Linux/Qt/C++: Linux only, suggests HAL, DeviceKit and udev
• Is there a C++ cross platform USB library?: Suggests libusbx

Answer 1

As already pointed out, Qt itself does not provide such a module. There is however a user-made class called QDeviceWatcher. I have no experience with it personally and it is not updated regularly but you could give it a try.

You can find the forum post here and the git repository here.