title: Can we do parallel polling and ioctl on same file descriptor using multiple threads
body: <p>I have a multi-threaded application in which one thread polls on a FD of my pseudo character driver. Can other threads use same FD for ioctl calls?</p>
  
  <p>I am using epoll on the FD.</p>
  
  <p>My guess is yes. I would like to know if anyone tried this. If so , what is the result? </p>