Re: [PATCH 2.6.7] Parallel port detection via ACPI

[Dino Klein]

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@xxxxxx>
> To: Dino Klein <dinoklein@xxxxxxxxxxx>
> 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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