Folks...

This is just a brief message to say that I have the very small beginnings
of ACPI support working in the NetBSD kernel.  That is to say, I can get
the ACPI tables and walk the namespace.  I am using the Intel ACPICA
reference implementation.

Here's a brief snipped from my ThinkPad's dmesg:

...
mainbus0 (root)
 tbxface-0184: ACPI Tables successfully loaded
Parsing Methods:................................................................
................................................................................
................................................................................
................................................................................
...........................
331 Control Methods found and parsed (1098 nodes total)
ACPI Namespace successfully loaded at root 0xc042b7e4
acpi0 at mainbus0
evxfevnt-0178: Transition to ACPI mode successful
`\M-><\M-@\M-R at acpi0 level 1 not configured
PNP0C0F at acpi0 level 1 not configured
PNP0C0F at acpi0 level 1 not configured
PNP0C0F at acpi0 level 1 not configured
PNP0C0F at acpi0 level 1 not configured
PNP0C01 at acpi0 level 1 not configured
PNP0C0D at acpi0 level 1 not configured
PNP0C0E at acpi0 level 1 not configured
PNP0A03 at acpi0 level 1 not configured
PNP0C02 at acpi0 level 3 not configured
PNP0000 at acpi0 level 3 not configured
PNP0100 at acpi0 level 3 not configured
PNP0200 at acpi0 level 3 not configured
PNP0800 at acpi0 level 3 not configured
PNP0C04 at acpi0 level 3 not configured
PNP0B00 at acpi0 level 3 not configured
PNP0303 at acpi0 level 3 not configured
IBM3780 at acpi0 level 3 not configured
PNP0C02 at acpi0 level 3 not configured
`\M-><\M-@\M-R at acpi0 level 3 not configured
PNP0C02 at acpi0 level 3 not configured
`\M-><\M-@\M-R at acpi0 level 3 not configured
PNP0700 at acpi0 level 3 not configured
PNP0501 at acpi0 level 3 not configured
PNP0400 at acpi0 level 3 not configured
IBM0071 at acpi0 level 3 not configured
PNP0C09 at acpi0 level 3 not configured
PNP0C0A at acpi0 level 4 not configured
PNP0C0A at acpi0 level 4 not configured
aacad0 at acpi0 level 4: ACPI AC Adapter
 amfldio-0219: AmlReadFieldData: **** Region EmbeddedControl(3) has no handler
Fatal error encountered
...

...that "Fatal error" isn't anything to worry about ... I expected to
lose trying to talk to the "AC Adapter" without having first attached
the "Embedded Controller".

There's still a lot of work to do yet, but you gotta crawl before you
walk, and I figured since it was sort-of crawling, I'd let people know.

-- 
        -- Jason R. Thorpe <thorpej@zembu.com>