Re: pckbc, com, lpt etc. at isa versus at acpi

To: port-amd64%netbsd.org@localhost, port-i386%netbsd.org@localhost
Subject: Re: pckbc, com, lpt etc. at isa versus at acpi
From: Martin Husemann <martin%duskware.de@localhost>
Date: Tue, 26 Jan 2016 20:32:28 +0100

On Tue, Jan 26, 2016 at 08:20:53PM +0100, Edgar Fuß wrote:
> Various "basic" PC devices (pckbc, com, lpt, fdc etc.) can either be 
> configured "at isa" or "at acpi".
> What are the benefits/drawbacks of the two possibilities?

The at isa variant is only needed for old BIOSes that have no working ACPI.

If ACPI is working, that variant is preferable as the firmware is supposed
to set up hardware and tables consistently.

Martin

References:
- pckbc, com, lpt etc. at isa versus at acpi
  - From: Edgar Fuß

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