From: Ted Ts'o <tytso@mit.edu>
To: Eric Sandeen <sandeen@redhat.com>
Cc: Ext4 Developers List <linux-ext4@vger.kernel.org>
Subject: Re: [PATCH] e2fsck: check new sysfs interface to determine if we are on battery
Date: Mon, 20 Feb 2012 20:24:23 -0500 [thread overview]
Message-ID: <20120221012423.GA25249@thunk.org> (raw)
In-Reply-To: <4F42E2A2.1020703@redhat.com>
On Mon, Feb 20, 2012 at 06:17:38PM -0600, Eric Sandeen wrote:
> > You need to enumerate through all power supply devices with the
> > "type" = "Mains" attribute, and check if any of them have the
> > "online" attribute as "1". If so you have AC power. If don't find
> > any power supply of "type" = "Mains" then you are on AC power
> > too. Only if you have one or more power supplies of "type" =
> > "Mains" and all of them have "online" = "0" then you are on
> > battery.
*Ugh*. Why is it that the new interfaces are always more complicated. :-(
> If your patch fixes the general case, I say go for it! :)
All's the world a Thinkpad, right? :-)
- Ted
prev parent reply other threads:[~2012-02-21 1:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-21 0:11 [PATCH] e2fsck: check new sysfs interface to determine if we are on battery Theodore Ts'o
2012-02-21 0:17 ` Eric Sandeen
2012-02-21 1:24 ` Ted Ts'o [this message]
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