There were two on campus rounds 45 mins each regarding digital design basics, VHDL/Verilog, fsm, C/C++ and some pseudo algorithms. One round was entirely on finite state machines and STA and the other was more on general stuff related to programming in C++, arrays, linked lists and pointers.

2 phone interviews, each 30-45 min by managers. First one, went into my course work and asked me lots of technical questions about the classes i had taken. Asked me about my internship project. Second interview asked me about my course work as well and asked me a couple technical qs. He also told me about qualcomm and what he does. Brush up on the fundamentals in everything you learned.