acpi-ca reports \_SB as a device

acpi-ca reports \_SB as a device

[Nate Lawson]

If you call AcpiGetType on \_SB, you get "device" and \_TZ gives 
"thermal".  I don't think this is valid since these are system scopes, 
not devices and thermal zones.

I found this while testing a patch that scans the whole namespace (\) 
for devices.  It turns out some systems put PCI link devices (PNP0C0F) 
in \, so we weren't probing them.

-- 
Nate

RE: acpi-ca reports \_SB as a device

[Moore, Robert]

For _SB_, this allows the _SB_._INI method to be run.

For _TZ, this allows notifies on the _TZ object.  Some ASL code does
this.


> -----Original Message-----
> From: Nate Lawson [mailto:nate-Y6VGUYTwhu0@public.gmane.org]
> Sent: Saturday, January 08, 2005 1:05 AM
> To: ACPI Developers
> Cc: acpi-HZy0K5TPuP5AfugRpC6u6w@public.gmane.org
> Subject: acpi-ca reports \_SB as a device
> 
> If you call AcpiGetType on \_SB, you get "device" and \_TZ gives
> "thermal".  I don't think this is valid since these are system scopes,
> not devices and thermal zones.
> 
> I found this while testing a patch that scans the whole namespace (\)
> for devices.  It turns out some systems put PCI link devices (PNP0C0F)
> in \, so we weren't probing them.
> 
> --
> Nate


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Re: acpi-ca reports \_SB as a device

[Nate Lawson]

Ok, your rationale seems sound.  We'll keep the workaround of skipping 
such namespace system objects when scanning from the root.

-Nate

Moore, Robert wrote:
> For _SB_, this allows the _SB_._INI method to be run.
> 
> For _TZ, this allows notifies on the _TZ object.  Some ASL code does
> this.
> 
> 
> 
>>-----Original Message-----
>>From: Nate Lawson [mailto:nate@root.org]
>>Sent: Saturday, January 08, 2005 1:05 AM
>>To: ACPI Developers
>>Cc: acpi@FreeBSD.org
>>Subject: acpi-ca reports \_SB as a device
>>
>>If you call AcpiGetType on \_SB, you get "device" and \_TZ gives
>>"thermal".  I don't think this is valid since these are system scopes,
>>not devices and thermal zones.
>>
>>I found this while testing a patch that scans the whole namespace (\)
>>for devices.  It turns out some systems put PCI link devices (PNP0C0F)
>>in \, so we weren't probing them.