How to detect USB device disconnect under Linux/Qt/C++

Question

I\'m writing a system (X-Platform Windows/Linux) that talks to a custom device using an FTDI USB chip. I use their D2XX driver for device open/close/read/write. So far, so

Answer 1

I recently had a project which involved reading via an FTDI chip. I also tried using libftdi but found out that it is much simpler to use /dev/ttyUSB* for reading and writing. This way, you can use QFile('/dev/ttyUSB*') to write and read. You can also check if the device actually exists and it won't segfault. Of course, this is not a very 'Platform independent' way. To get a platform independent method, you can use a Serial library for Qt.