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    SubjectRe: APM_CONFIG on x86 - Is it possible?
    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
    #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".

    -- yotam


    On Fri, 31 Dec 2010 11:39:54 -0800
    Randy Dunlap <rdunlap@xenotime.net> wrote:

    > On Fri, 31 Dec 2010 21:28:00 +0200 Yotam Medini wrote:
    >
    > > Randy,
    > >
    > > Thanks for your quick reply.
    > > Sorry, but the subject line should have been:
    > > APM_POWER on x86 - Is it possible?
    >
    > Nope, not on X86.
    >
    > > I do get
    > > CONFIG_APM=m
    > > in the .config, but I am trying to get
    > > CONFIG_APM_POWER=m
    > > as well. So far, I do not see how.
    >
    > APM_POWER depends on APM_EMULATION, which is not available on X86.
    > But real APM is available on X86, so why would you need APM_EMULATION
    > instead of APM_FOR_REAL ?
    >
    > Enabling APM (according to its Kconfig help text) provides /proc/apm
    > battery status information.
    >

    On Fri, 31 Dec 2010 11:25:04 -0800
    Avery Pennarun <apenwarr@alumnit.ca> wrote:

    > On Fri, Dec 31, 2010 at 4:09 AM, Yotam Medini יותם מדיני
    > <yotam.medini@gmail.com> wrote:
    > > For a target ancient UMAX-ActionBook 530T, I am trying to compile
    > > a Linux kernel that will support apm (/proc/apm)
    > > for battery monitoring.
    > > Alas, it looks like that with current 2.6.3n.* kernels
    > > it is not possible to configure CONFIG_APM_POWER on x86(/i386)
    > > architectures.
    > >
    > > Am I missing something, is there a bypass?
    >
    > CONFIG_APM still exists and can be enabled in 2.6.36 for me.
    >
    > Avery

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