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

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Message-ID: <1677000.FsvVVRjEvo@vostro.rjw.lan>
Date:	Sat, 15 Mar 2014 02:46:19 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Ilia Mirkin <imirkin@...m.mit.edu>,
	Lan Tianyu <tianyu.lan@...el.com>
Cc:	Pavel Machek <pavel@....cz>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	kernel list <linux-kernel@...r.kernel.org>
Subject: Re: 3.14-rc: /proc/acpi/battery gone?

On Friday, March 14, 2014 06:14:12 PM Ilia Mirkin wrote:
> On Fri, Mar 14, 2014 at 6:11 PM, Pavel Machek <pavel@....cz> wrote:
> > On Fri 2014-03-14 17:29:41, Ilia Mirkin 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 :(
> >
> > Name one application it broke, and we'll get it reverted. It broke my
> > by-hand journalling, at the very least.
> 
> wmbattery
> 
> They have attempted to use the sysfs api, but apparently that
> integration was done with an older version of that API. There's also
> some attempt to get it to work with upower, but I couldn't figure out
> how to make that work either on my (up-to-date gentoo) box. (TBH I
> didn't spend more than an hour or two on it, so it may not be
> impossible.)

Tianyu, can you please have a look at this?

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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