Messages in this thread |  | | | Date | Fri, 31 Dec 2010 23:40:10 +0200 | | From | Yotam Medini <> | | Subject | Re: APM_CONFIG on x86 - Is it possible? |
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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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