linux-kernel - Re: 3.14-rc: /proc/acpi/battery gone?

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Date:	Fri, 14 Mar 2014 22:45:17 +0100
From:	Richard Weinberger <richard.weinberger@...il.com>
To:	Ilia Mirkin <imirkin@...m.mit.edu>
Cc:	Pavel Machek <pavel@....cz>, rjw@...ysocki.net,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	kernel list <linux-kernel@...r.kernel.org>,
	tianyu.lan@...el.com, rafael.j.wysocki@...el.com,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: 3.14-rc: /proc/acpi/battery gone?

On Fri, Mar 14, 2014 at 10:29 PM, Ilia Mirkin <imirkin@...m.mit.edu> wrote:
> On Fri, Mar 14, 2014 at 5:14 PM, Pavel Machek <pavel@....cz> wrote:
>> Hi!
>>
>> It seems /proc/acpi/battery interface is gone, and I don't see any
>> option to reintroduce it... what is going on?
>
> The interface went away in a semi-recent kernel release (3.13 or
> 3.12), breaking pretty much every battery app. (Admittedly the
> interface was marked as deprecated for quite some time, but that
> didn't stop everyone from using it and not caring about the new
> thing.) I've yet to find a windowmaker dock app that works with the
> current sysfs API :(
>

commit 1e2d9cdfb4494fce682b4ae010d86a2766816d36
Author: Lan Tianyu <tianyu.lan@...el.com>
Date:   Fri Oct 11 09:54:08 2013 +0800

    ACPI / Battery: Remove battery's proc directory

    The battery's proc directory isn't useded and remove it.

    Signed-off-by: Lan Tianyu <tianyu.lan@...el.com>
    Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Looks like this one is the said commit.
If it breaks userspace we have to revert it IMHO.

-- 
Thanks,
//richard
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