David P. Reed wrote:
And actually, if I had looked at the /sys/bus/pnp definitions, rather
than /proc/ioports, I would have noticed that port 80 was part of a
PNP0C02 resource set. That means exactly one thing: ACPI says that
port 80 is NOT free to be used, for delays or anything else.
This should make no difference here: it's just one more reason to stop
using port 80 for delays on modern machines.
And shoot the designer of this particular microcontroller firmware.
-hpa
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