Re: [elysium-developers] IRQ handling

[Adam L. <ag...@li...>]

On Sun, Feb 06, 2000 at 04:25:05PM +0100, Kasper Verdich Lund wrote:
> Since the Elysium kernel is a true micro-kernel it will not contain any
> drivers at all. I've been fiddling around with a keyboard driver - and a
<snip>

I'm not sure that IRQ sharing can be done securely w/o the kernel. There is=
 no reason that processes that need the bind to IRQ's, need to trust each o=
ther. How can we make sure that a process will pass on an IRQ event to othe=
rs? (without using the kernel, that is). But the line can be drawn later.

As for IRQ latency: For keyboards, latency is not a big issue. However for =
things like sound cards and network cards it is more important. But all OS'=
s have bottom-halfs (therefore some latency) and w/o the kernel saving stat=
e I don't see another way of doing it.

AGL

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