That's called 'embedded' and it has it's place. It's nearly always better to take interrupts than poll. A device driver that leaves the game to execute game co

That's called 'embedded' and it has it's place. It's nearly always better to take interrupts than poll. A device driver that leaves the game to execute game code, putting results on a queue the game can test in it's poll loop, makes the UI responsive. Otherwise it'd hang every time a write to disk occurred, waiting for seek, then shifing the bytes out. Not a benefit to anybody.