linux-kernel - [BUG] /sys/class/power_supply/BAT0/ shouldn't disappear when battery is unplugged

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Message-Id: <1240753018.26851.6.camel@maxim-laptop>
Date:	Sun, 26 Apr 2009 16:36:58 +0300
From:	Maxim Levitsky <maximlevitsky@...il.com>
To:	cbou@...l.ru
Cc:	dwmw2@...radead.org, linux-kernel <linux-kernel@...r.kernel.org>
Subject: [BUG] /sys/class/power_supply/BAT0/ shouldn't disappear when
 battery is unplugged

New sysfs battery interface has a flaw.

Suppose I removed battery from the system, and then booted it.
then gnome power manager has no idea that my system has battery, and
thus it hides battery settings.

It also has a bug that prevents it from hiding battery icon, when I
unplug the battery, in other words, it isn't prepared for battery to
disappear.

I think it would be nice to keep /sys/class/power_supply/BAT0/ even if
battery isn't present.

btw, there is /sys/class/power_supply/BAT0/present, thus maybe this is
just a bug?

Best regards,
	Maxim Levitsky

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