Re: Dell acpi_video patch

John Baldwin <[email protected]>
Newsgroups gmane.os.freebsd.devel.mobile
Message-ID <201210191313.14246.jhb__43135.348839178$1350670504$gmane$org@freebsd.org>
On Friday, October 19, 2012 11:41:56 am Alberto Villa wrote:
> On Fri, Oct 19, 2012 at 4:53 PM, John Baldwin <[email protected]> wrote:
> > I'm looking at section B.4.2 in the 3.0b spec, it has a sample _DOD of:
> 
> I've read section B.3.2 of 5.0 spec, which looks the same as 3.0b, but
> my IDs don't have bit 31 set, they have bit 16 (which is the
> difference between _DOD and _ADR you were probably talking about). Or
> am I missing the point?

Yes, unless bit 31 is set, we can't know anything about bits 0-15 except
that they are "unique".  Specifically, we can't look at the "Display Type"
bits to determine if an output device is a CRT vs LCD vs TV, etc.  You
can only do that if bit 31 is set.

-- 
John Baldwin
_______________________________________________
[email protected] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-mobile
To unsubscribe, send any mail to "[email protected]"
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.