title: FUSE - detailed documentation
body: <p>trying to get my own filesystem working using fuse (filesystem in user space, linux) im really curious on where to get detailed up to date documentation of the operations used?</p>
  
  <p>most time i search for other file system implementations and see what they do, but some operations seem to be not widely used like poll/ioctl or bmap.
  and the documentation of the fuse api doesnt help much, cause e.g. the parameters and return values of the operations are not documented thus i have to guess how to use em</p>
  
  <p>so the question is where do i get better information about how such exotic operations are supposed to be implemented?</p>
  
  <p>thx</p>