And how do you ensure that no interrupt is lost ?
In fact you now are likely to have a race condition reading device status or
> > userspace reenable the interrupt.
> "user acknowledge" is mean that.
> > In addition, how do you handle shared interrupts ?
> It is impossible, see my another message.
Which IMHO makes the concept pretty much useless.
Interrupt sharing is pretty much the norm today. And there is no evidence for
this to change in the near future. Rather the opposite seems to happen in
Which devices were you thinking of, that need a hardware IRQ and no kernel
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