Hi!
I found this thread googling. I have a problem which is similar but not exactly the same.

I have a PIC18F14K50 which has an attached USB Controller. The USB Controller gets Data from an EEPROM and has to send 64 byte packages to a PC using a USB Cable. The Device is supposed to be recognized as a COM Device. So here I dont need a HID driver but a CDC driver. Luckily, the USB Controller is already programmed and is fully functional. It waits for a certain signal and then sends its data.

There is already an existing GUI made with Java which works but isnt as stable as it should be and I want to reprogram the whole thing in C++ using Qt.
For the Java GUI they used the library called RXTX-2.2pre2

Im searching the same thing but for C/C++.
I never did something like this before, so I dont really know what I need to get access to the USB Controller. I need functions like send(...), receive(...), open(), close().
I downloaded the whole Microchip application libraries and browsed them for anything useful. I was hoping for some headers and .cpp's that include the functionality that I need. That might have been a bit naive... I know...

Does anyone know how to find classes that implement the functions I need?

Thanks for reading!
shs