Vicharak Computers interview questions

I had 2 rounds or interview process. Round 1: A task given regarding a character device driver to be completed in 15 days, explain it in a video . Round 2: asked questions regarding my projects present on github. I had a file system project, hence they asked me regarding the need, use and what it gave it you. Basically you should have knowledge of operating systems, linux kernel or system level related to architectures ,etc.