linux-kernel - Re: Get the min and max frequency of a processor

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Message-ID: <CAH0vN5KS1UpxFHx0L_9btY_P0TKnNst74uBqZo+CGt4qWOdYsQ@mail.gmail.com>
Date:	Sat, 1 Sep 2012 17:26:58 -0300
From:	Marcos Souza <marcos.souza.org@...il.com>
To:	Borislav Petkov <bp@...en8.de>, linux-kernel@...r.kernel.org
Subject: Re: Get the min and max frequency of a processor

2012/8/31 Borislav Petkov <bp@...en8.de>:
> On Fri, Aug 31, 2012 at 06:52:46AM -0300, Marcos Souza wrote:
>> Nothing is wrong with access /sys, but I thought there was another
>> way, like an API or something else.
>
> Ah, there's no API, AFAICT.
>
> Also, tools/power/cpupower/ uses sysfs too - you could reuse that
> code if you don't feel like writing it yourself. The function is
> cpufreq_get_hardware_limits()

I will take a look in the cpupower.

> Ok, technically, there is also a way to query the CPU's MSRs directly
> but this is a bit more involved than reading sysfs nodes.

My application don't need this complexity. I believe the /sys nodes
ould help me.

> HTH.
>
> --
> Regards/Gruss,
> Boris.

Thanks Borislav for showing to me all available choises to do this job!


-- 
Att,

Marcos Paulo de Souza
Acadêmico de Ciencia da Computação - FURB - SC
"Uma vida sem desafios é uma vida sem razão"
"A life without challenges, is a non reason life"
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