Gilles Chanteperdrix wrote:
> Jan Kiszka wrote:
>  > No problem, but only when combining with a
>  > 
>  > comment "Switch off CONFIG_INPUT_PCSPKR to use Xenomai" (or so)
>  >    depends on !X86_TSC && X86 && INPUT_PCSPKR
>  > 
>  > Otherwise the user will be left alone here with a non-selectable Xenomai
>  > option...
>  > 
>  > This actually remind me of my suggestion some months ago to add Kconfig
>  > warnings for CONFIG_CPU_FREQ & friends. Might be a good chance to catch
>  > this all. Is scripts/Kconfig.frag the preferred place to add it?
> 
> 
> Why not? Here is a second patch that follows your suggestions.

No objections! Looks good to me. But shouldn't we add APM as well?

Jan

> 
> 
> 
> ------------------------------------------------------------------------
> 
> Index: scripts/Kconfig.frag
> ===================================================================
> --- scripts/Kconfig.frag      (revision 1402)
> +++ scripts/Kconfig.frag      (working copy)
> @@ -1,7 +1,20 @@
>  
>  menu "Real-time sub-system"
>  
> +comment "WARNING! You enabled CPU Frequency scaling or use of ACPI"
> +     depends on CPU_FREQ || ACPI_PROCESSOR
> +comment "processor C states as idle handler (ACPI 'processor' option)."
> +     depends on CPU_FREQ || ACPI_PROCESSOR
> +comment "These options are known to cause troubles with Xenomai."
> +     depends on CPU_FREQ || ACPI_PROCESSOR
> +
> +comment "NOTE: Xenomai conflicts with PC speaker support."
> +     depends on !X86_TSC && X86 && INPUT_PCSPKR
> +comment "(menu Device Drivers/Input device support/Miscellaneous devices)"
> +     depends on !X86_TSC && X86 && INPUT_PCSPKR
> +
>  config XENOMAI
> +     depends on X86_TSC || !X86 || !INPUT_PCSPKR
>       bool "Xenomai"
>       default y
>          select IPIPE


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