Re: Getting cpu frequency

From: Dave Jones
Date: Sat Feb 11 2006 - 16:40:42 EST


On Sat, Feb 11, 2006 at 09:47:34PM +0100, Nico Golde wrote:
> Hi,
> at the moment I try to get the current cpu frequency via
> using the cpufreq_get() function defined in linux/cpufreq.h.
> Can someone point me to the headers I have to include to let
> this work because just doing #include <linux/cpufreq.h>
> results in a bunch of errors:
> [...]
> In file included from /usr/include/linux/cpu.h:22,
> from cpu.c:2:
> /usr/include/linux/sysdev.h:31: error: field 'drivers' has incomplete type
> /usr/include/linux/sysdev.h:35: error: syntax error before 'pm_message_t'
> /usr/include/linux/sysdev.h:37: error: field 'kset' has incomplete type
> /usr/include/linux/sysdev.h:50: error: field 'entry' has incomplete type
> /usr/include/linux/sysdev.h:54: error: syntax error before 'pm_message_t'
> /usr/include/linux/sysdev.h:69: error: syntax error before 'u32'
> /usr/include/linux/sysdev.h:72: error: syntax error before '}' token
> /usr/include/linux/sysdev.h:79: error: field 'attr' has incomplete type
> /usr/include/linux/sysdev.h:80: error: syntax error before 'ssize_
> [...]
> Using 2.6.14.
> Regards Nico
> P.S. Please CC me, I am not subsribed, thanks

Are you trying to do this from a userspace program ?
If so, this isn't going to work.

Dave


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