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Re: Battery update

From: Johannes Weiner
Subject: Re: Battery update
Date: Fri, 08 Aug 2008 12:52:20 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux)


Eli Zaretskii <address@hidden> writes:

>> From: Sven Joachim <address@hidden>
>> Date: Fri, 08 Aug 2008 07:56:43 +0200
>> Cc: address@hidden, Emre Sahin <address@hidden>,
>>      address@hidden
>> On 2008-08-08 02:10 +0200, Chong Yidong wrote:
>> >        (if (battery-search-for-one-match-in-files
>> >        (list "/sys/class/power_supply/AC/online") "1" 0)
>> >       "AC"
>> FWIW, I don't have a /sys/class/power_supply/AC directory, but there is
>> /sys/class/power_supply/ACAD.  Seems the directory has moved somewhere
>> between kernel 2.6.22 and 2.6.25, see
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=478937.
> So what, we are now going to chase this elusive directory till Kingdom
> Come?  I say let's stop supporting this feature until the Linux kernel
> developers make up their minds about the place and shape of this
> information.  Geez! that's even worse than Microsoft's zigzagging of
> some APIs.

>From Documentation/feature-removal.txt:

What:   ACPI procfs interface
When:   July 2008
Why:    ACPI sysfs conversion should be finished by January 2008.
        ACPI procfs interface will be removed in July 2008 so that
        there is enough time for the user space to catch up.

But I doubt that it will happen soon, though.

Emacs from CVS should probably support the latest variant of this API.


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