Redpine came for campus placements. After a brief presentation, through which we were told that it's an emerging company in wireless space with numerous patents, we had a written test. Test was of subjective nature, with questions from digital and analog electronics, communications, C language and aptitude. Such a mixed nature of questions was a bit of a surprise. After that, we had interviews, only technical. Questions were asked based on our interests: digital VLSI, communications or analog. I gave the digital VLSI one, in which questions were asked from STA, FIFO, adders, microprocessors as well as from my CV.