Date: Sat, 14 Jul 2007 23:01:57 +1000 (EST) From: Ian Smith <smithi@nimnet.asn.au> To: Nate Lawson <nate@root.org> Cc: acpi@freebsd.org Subject: Re: ACPI summary available Message-ID: <Pine.BSF.3.96.1070714224403.11786B-100000@gaia.nimnet.asn.au> In-Reply-To: <46979A40.8040909@root.org>
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On Fri, 13 Jul 2007, Nate Lawson wrote: > Ian Smith wrote: > > On Thu, 12 Jul 2007, Nate Lawson wrote: > > > Kevin Oberman wrote: > > > > Thanks to a note on /., I found what looks to be a very nice summary of > > > > ACPI and its myriad of states (C, D, G, S, and P). While it does not go > > > > into ASL, the ACPI tables, or things of that sort, it is probably a > > > > good starting place for those interested in just what ACPI is all about. > > > > It filled in some gaps (especially about D and lower C states) for me. > > > > > > > > One small request...I am far from an ACPI expert and there may be > > > > serious flaws in the article that I am unaware of. If so, please let me > > > > know so I don't recommend it more widely. IF it looks good, I plan to > > > > post a message about it to mobile@. > > > > > > > > http://www.techarp.com/showarticle.aspx?artno=420 > > > > > > It's ok. It doesn't include much real knowledge such as the fact that > > > S2 has seldom been observed on a real system. It includes very > > > processor-rev specific stuff such as which P states are supported on > > > which CPUs. The diagram leaves out the embedded controller completely. [..] > > Short of your shelf of books, deep specs and the code, can you suggest > > any other useful online ACPI in-a-nutshell references for neophytes? > > Handbook > http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/acpi-debug.html > http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/acpi-overview.html Indeed. I'd forgotten that acpi-debug has good reference links, but not: > Usenix paper > http://www.usenix.org/events/usenix02/tech/freenix/full_papers/watanabe/watanabe_html/index.html Thanks for this Nate .. on a quick skim so far it covers much of the background and history I lack. Keep me off the streets for a while. Thanks also to Alex. Cheers, Ian
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