OK, In any case thank You for assistance

... I know about this technique, but I was told that it works not so fast. Calling the function mustn't take more time than 1 microsecond... Maybe eventually I'll use it. As far I know this pending ioctl will block others ioctls that should be processed... Why not callbacks? Do You know how to add a...

Hello! I'm first time here. I don't think I'm exactly understanding what is this resource for, but I found some interesting source codes here:) And there is my question: I have to call UserMode function from my driver(and receive a returned value). I know that it may be done by using KeUserModeCallb...