MosChip Software Engineer interview questions

I interviewed at MosChip (Hyderabad). The process took 2 days. Interview process consists of written test, 2 technical rounds, HR round. Written test was theoretical which includes c, linux, ARM controller questions for 75 minutes. C questions, Linux questions like fifo, message queue difference, schedulling and types of it, explain static and dynamic kernel modules, IPCs and ARM questions like types of modes in ARM, Pipelining in ARM, THUMB mode explain, why frq is faster than irq?, Difference between exception and interrupts........etc. I cleared test but could not clear 2nd technical round which was logical and puzzle based, some puzzles, probability based questions asked by interviewer. And 1st technical round was based on C concepts clearly and embedded systems like registers of uart communications, baud rate.....etc