OSDev.org

device send interrupt when certain event has happend on it. it sends only 1 interrupt, right?
it is possible to disable interrupts on device, for example by using MiniportDisableInterrupt() on windows.

how doest it work? i dont think that this function use hardware-specyfic methods to disable interrupts.

I suggest you start with background reading: http://en.wikipedia.org/wiki/Interrupt - most of your questions will be answered by that.