From: "Dino Klein" <dinoklein@hotmail.com>
To: bjorn.helgaas@hp.com
Subject: Re: [PATCH 2.6.7] Parallel port detection via ACPI
Date: Sun, 27 Jun 2004 23:23:38 -0300
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Hey,
I have one question about using acpi_register_gsi() - this is an ia64 only 
thing, right?
Thing is, that I remember an exchange on the acpi mailing list mentioning 
that there is no legacy hardware on ia64 systems; wouldn't that also include 
the parallel port?


>From: Bjorn Helgaas <bjorn.helgaas@hp.com>
>To: Dino Klein <dinoklein@hotmail.com>
>Subject: Re: [PATCH 2.6.7] Parallel port detection via ACPI
>Date: Tue, 22 Jun 2004 17:42:36 -0600
>
>Nice start at this!  As you note, it needs a little work.  Here are
>a couple things I noticed:
>
>	- the ACPI stuff should be under #ifdef CONFIG_ACPI
>	- the IRQ should be fed through acpi_register_gsi() (a new
>	  interface that showed up in BK a few days ago)
>	- there are IRQ and extended IRQ structures -- maybe
>	  should be extended to handle both?
>	- seems like it'd be nice to arrange it so we look in
>	  ACPI first, then fall back to previous detection if
>	  that fails (probably with a boot-time option to disable
>	  the ACPI detection in case the firmware is buggy)
>
>Again, good work!  I'm glad to see us starting to take advantage
>of this stuff.
>
>Bjorn

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