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From: Martin Margraf <m_margraf@web.de>
To: Minjie Lin <MLin@EmpowerTechnologies.com>
Cc: linux-omap-open-source@linux.omap.com
Subject: RE: change cpu_freq
Date: Fri, 16 Jun 2006 08:40:34 +0200	[thread overview]
Message-ID: <953970285@web.de> (raw)

hi minjie,

thanks for the answer.
how is the syntax of this? like "echo scaling_setspeed=value > /sys/devices...." ?

martin

> -----Ursprüngliche Nachricht-----
> Von: "Minjie Lin" <MLin@EmpowerTechnologies.com>
> Gesendet: 15.06.06 20:19:01
> An:  <linux-omap-open-source@linux.omap.com>
> Betreff: RE: change cpu_freq


> Hi Martin,
> 
> You can select userspace governor for cpu_freq and change
> /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed value
> to change the cpu frequency.
> 
> Regards,
> 
> Minjie
>  
> 
> -----Original Message-----
> From:
> linux-omap-open-source-bounces+mlin=empowertechnologies.com@linux.omap.c
> om
> [mailto:linux-omap-open-source-bounces+mlin=empowertechnologies.com@linu
> x.omap.com] On Behalf Of Martin Margraf
> Sent: June 14, 2006 5:34 AM
> To: linux-omap-open-source@linux.omap.com
> Subject: change cpu_freq
> 
> hi,
> 
> how can i change the cpu frequency of my osk5912 using the
> scale_cpu_freq feature of the 2.6.16 kernel? how is the syntax of this? 
> is there a documentation available (except the ones in the documentation
> folder of my linux directory)?
> 
> my next question is, how can i read/write to the regs of the omap5912? 
> during using 2.4 kernel i was able to access the regs directly with a
> module. but now with 2.6 kernel i get a segmentation fault. maybe
> someone can help me?
> 
> regards
> 
> martin
> _______________________________________________
> Linux-omap-open-source mailing list
> Linux-omap-open-source@linux.omap.com
> http://linux.omap.com/mailman/listinfo/linux-omap-open-source


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             reply	other threads:[~2006-06-16  6:40 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-16  6:40 Martin Margraf [this message]
  -- strict thread matches above, loose matches on Subject: below --
2006-06-16 23:35 change cpu_freq Minjie Lin
2006-06-15 18:19 Minjie Lin
2006-06-14 12:34 Martin Margraf
2006-06-14 12:44 ` Juha Yrjölä

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