Re: [linux-kernel] Re: [PATCH] x86: provide a DMI based port 0x80I/O delay override.

[H. Peter Anvin]

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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