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From: Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>
To: Alan Cox <alan-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>
Cc: "Robert C. Paulsen Jr."
	<robert-J3gkRE/D7QA8RZtLRHdnRF6hYfS7NtTn@public.gmane.org>,
	Linux Power Management Development
	<linux-pm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
	Linux ACPI Development
	<acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
	Linux APMD <apmd-list-+wEybqfU8vgCzWx7n4ubxQ@public.gmane.org>,
	CPU Frequency <cpufreq-1walMZg8u8rXmaaqVzeoHQ@public.gmane.org>
Subject: Re: An embedded-Linux power-management framework
Date: Sat, 3 Aug 2002 10:58:41 +0200	[thread overview]
Message-ID: <20020803085840.GA191@elf.ucw.cz> (raw)
In-Reply-To: <1028315477.18635.113.camel-MMxVpc8zpTQVh3rx8e9g/fyykp6/JSeS3vcXtXqGYxw@public.gmane.org>

Hi!

> Take a look at cpufreq. The processor speed/voltage side is a solved
> problem with working code for x86 and ARM processors including the
> framework to adjust other devices. For example on ARM you have to frob
> with the RAM clocks. Cpufreq deals with it nicely both from user and
> kernel sides
> 
> In terms of per process settings please read US patent 6,298,448.

Hmm.. like moving outside U.S.? ;-)

[OTOH, IBM might be big enough to buy the pattent and put it in PD or
(preferably) prove there was prior work / prove it was trivial and
invalidate that.]
								Pavel
-- 
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  parent reply	other threads:[~2002-08-03  8:58 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-08-02 17:28 An embedded-Linux power-management framework Robert C. Paulsen Jr.
     [not found] ` <20020802172802.GA32612-o5m52qS82XggC06IV0sn5h2eb7JE58TQ@public.gmane.org>
2002-08-02 19:11   ` Alan Cox
     [not found]     ` <1028315477.18635.113.camel-MMxVpc8zpTQVh3rx8e9g/fyykp6/JSeS3vcXtXqGYxw@public.gmane.org>
2002-08-02 18:20       ` Hollis Blanchard
     [not found]         ` <1028312475.23390.63.camel-j9xLUTenKzJXsEFxtoW7CMxtgHpCUUYS@public.gmane.org>
2002-08-02 23:29           ` Alan Cox
2002-08-03  0:48             ` Johnathan Hicks
     [not found]               ` <3D4B284F.20402-Pn2JTpibVOrk1uMJSBkQmQ@public.gmane.org>
2002-08-03 13:47                 ` Alan Cox
2002-08-03 14:50                   ` Johnathan Hicks
2002-08-02 23:31           ` Alan Cox
2002-08-03  8:58       ` Pavel Machek [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-08-03  1:28 Bishop Brock
     [not found] ` <OF94EF243F.A49E95B4-ON86256C09.00716EF4-yJlKWOkj9xhBDgjK7y7TUQ@public.gmane.org>
2002-08-03 13:40   ` Alan Cox
2002-08-03  2:29 Bishop Brock
     [not found] ` <OF4415334C.6C7486B8-ON86256C0A.00081BB4-yJlKWOkj9xhBDgjK7y7TUQ@public.gmane.org>
2002-08-03 13:32   ` Alan Cox
     [not found] <3D4BEDA4.4030908-Pn2JTpibVOrk1uMJSBkQmQ@public.gmane.org>
2002-08-06 14:55 ` Alan Cox

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