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SubjectRe: [linux-kernel] Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override.
On 10-01-08 01:37, Robert Hancock wrote:

> David P. Reed wrote:

>> I have a small suggestion in mind that might be helpful in the future:
>> the "motherboard resources" discovered as PNP0C02 devices in their _CRS
>> settings in ACPI during ACPI PnP startup should be reserved (or
>> checked), and any drivers that still use port 80 implicitly should
>> reserve that port.
>
> I agree. In this case the BIOS on these laptops is trying to tell us
> "port 80 is used for our purposes, do not touch it". We should be
> listening.

Listening is fine but what are you going to do after you have listened?
Right, not use port 0x80 but since that's the current idea anyway outside of
legacy drivers, you don't actually need to listen.

If the quirk-to-0xed or similar was to stay, it's a much better switching
point than DMI strings but if not, it's not actually important.

Rene.


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