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List: linux-kernel
Subject: Re: APM_CONFIG on x86 - Is it possible?
From: Randy Dunlap <rdunlap () xenotime ! net>
Date: 2010-12-31 22:23:35
Message-ID: 20101231142335.84e00497.rdunlap () xenotime ! net
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On Fri, 31 Dec 2010 23:40:10 +0200 Yotam Medini wrote:
> The .config I ended up with does have:
> CONFIG_APM=m
> But no CONFIG_APM_POWER setting,
> When booting the kernel, I don not have /proc/apm.
> I do get:
>
> $ sudo modprobe apm
> FATAL: Error inserting apm
> (/lib/modules/2.6.32.yumax/kernel/arch/x86/kernel/apm.ko): No such device
>
> Please note that
> drivers/power/Makefile:118
> has:
> obj-$(CONFIG_APM_POWER) += apm_power.o
>
> Also the "/proc/apm" is created in
> drivers/char/Makefile:71
> obj-$(CONFIG_APM_EMULATION) += apm-emulation.o
> drivers/char/apm-emulation.c:668-670
Hint: This is not the only place that /proc/apm is created.
> #ifdef CONFIG_PROC_FS
> proc_create("apm", 0, NULL, &apm_proc_fops);
> #endif
> As far as I understand, CONFIG_APM is not sufficient
> for the creation of "/proc/apm".
---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
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