Qualcomm Embedded Software Developer interview questions

Began with a phone screen interview which was all technical for about 45 mins to an hour. Called for on-site interview with 5-6 rounds. My first interviewer did not show up on time and the whole interview process was delayed by an hour and half. All the interviews after that were standard. But the interviewers were thoroughly unprofessional. They almost seemed disinterested in taking my interview and were making faces. Looking at their computer screen while hearing my answers and asking me questions.