* Segher Boessenkool segher@kernel.crashing.org [061203 13:42]:
On LPC, yes -- or 0.5us or something like that. On ISA it's a lot faster, on PCI too -- better do 20 or so outb's to be safe.
The value's actually something we have been using as a rule of thumb while doing outb to port 80. Don't think these are routed to LPC, are they?