In message <[EMAIL PROTECTED]>, Garrett Wollman writes:
><<On Tue, 31 Aug 1999 15:16:48 -0700, Mike Smith <[EMAIL PROTECTED]> said:
>> Actually, that's almost entirely system-dependant.  The BIOS may well 
>> poll the keyboard controller/USB controller, for example.
>And designs based on the Intel PIIX4 will generate SMI# interrupts for
>whichever activities are programmed in the BIOS, completely bypassing
>the traditional interrupt mechanism.

And these interrupts will take as much as 50usec to service...

Poul-Henning Kamp             FreeBSD coreteam member
[EMAIL PROTECTED]               "Real hackers run -current on their laptop."
FreeBSD -- It will take a long time before progress goes too far!

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