From: Sven Geggus <geg@iitb.fhg.de>
To: linux-kernel@vger.kernel.org
Subject: Changing CPU Speed while running Linux
Date: Wed, 13 Jun 2001 14:35:37 +0200 [thread overview]
Message-ID: <20010613143536.A1323@iitb.fhg.de> (raw)
Hi there,
on my Elan410 based System it is very easy to change the CPU clock speed by
means od two outb commands.
I was wondering, if it does some harm to the Kernel if the CPU is
reprogrammed using a different CPU clock speed, while the system is up and
running.
If so, is there a possibility to tell the Kernel that the clock speed has
been changed by means of a particular Kernel call?
If not, where would I put some code to do this at system boot?
Is /usr/src/linux/arch/i386/boot/setup.S the right place for something like
this?
Thanks for hints
Sven
--
Sven Geggus @ Fraunhofer IITB, Karlsruhe (http://wsd.iitb.fhg.de/)
Phone: +49 721 6091-422, Fax: +49 721 6091-213
Linux powered DATA aquisition and evaluation, embedded systems,
combustion engine diagnosis
next reply other threads:[~2001-06-13 12:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-13 12:35 Sven Geggus [this message]
2001-06-13 13:21 ` Changing CPU Speed while running Linux Arjan van de Ven
2001-06-14 13:12 ` Pavel Machek
2001-06-16 10:46 ` arjan
2001-06-16 13:23 ` Alan Cox
2001-06-16 13:56 ` Ian Stirling
2001-06-13 13:41 ` Magnus Sandberg
2001-06-13 13:49 ` Dave Jones
2001-06-13 22:23 Dieter Nützel
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