From what I'v found out so far: d/u = strum down up
Em d/u, Em d/u, Em u, Em d/u | F#m d/u, F#m u, F#m u F#m u ||
From what I have been learning (only a couple of months) when you strum up you only need to do the bottom 2 or 3 strings. Is this still the case with a note such as F#m?
Sorry, I'm not up on writing tab yet.
Thanks
Ed