An hour-long phone screen dealing with C related questions and hopefully, one coding question. Second round was F2F with an engineer/manager. I don't know of any other company which emphasizes on C so much. You should always look for generalists who are smart enough to write working code. Getting into the internal details of C is the old-school way of taking interviews. It just checks your knowledge (considering that all your questions are posted online) and I can see how the engineers over there are selected. Yuck. Left a sour taste. So not what I was looking for in a potential future employer.