Re: CVS commit: src/sys/dev/acpi

["Jared D. McNeill" <jared.mcneill%live.ca@localhost>]

-------------------------------------------------
From: "David Young" <dyoung%netbsd.org@localhost>
Sent: Tuesday, April 07, 2009 8:23 PM
To: <source-changes-full%NetBSD.org@localhost>
Subject: CVS commit: src/sys/dev/acpi

> Module Name: src
> Committed By: dyoung
> Date: Wed Apr  8 00:23:30 UTC 2009
>
> Modified Files:
> src/sys/dev/acpi: acpi.c acpivar.h
>
> Log Message:
> Refactor slightly to create acpi_rescan(), a hook for rescanning the
> devices that attach at acpi(4).
>
> Begin deriving an acpi(4) device-detachment hook, acpi_detach(), from
> acpi_attach().  The code between #if 0 and #endif still needs to be
> turned to the opposite calls (enables to disables, maps to unmaps,
> attaches to detaches), which should be run in the opposite order.
> Somebody with deep ACPI knowledge can probably finish this off without
> too much trouble.

Detaching ACPI is more complicated than this because it is actually used for 
much more than just device attachment; think about IRQ routing, PCI bus 
discovery, PCI bus/addr/intr fixups, and CPU attachment as some examples. 
It's probably not worth the effort.

Cheers,
Jared