Date: Thu, 12 Jul 2007 14:09:50 -0700 From: Nate Lawson <nate@root.org> To: Kevin Oberman <oberman@es.net> Cc: acpi@freebsd.org Subject: Re: ACPI summary available Message-ID: <4696989E.5080101@root.org> In-Reply-To: <20070712201444.4A28E45042@ptavv.es.net> References: <20070712201444.4A28E45042@ptavv.es.net>
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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. -Nate
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