linux-kernel - Re: Generic battery interface

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Date:	Thu, 27 Jul 2006 18:10:44 +0300
From:	"Shem Multinymous" <multinymous@...il.com>
To:	"Pavel Machek" <pavel@...e.cz>
Cc:	"Matthew Garrett" <mjg59@...f.ucam.org>, vojtech@...e.cz,
	"Len Brown" <len.brown@...el.com>,
	"kernel list" <linux-kernel@...r.kernel.org>,
	linux-thinkpad@...ux-thinkpad.org
Subject: Re: Generic battery interface

On 7/27/06, Pavel Machek <pavel@...e.cz> wrote:
> Well, in that case probably smapi driver should "hook into" acpi
> driver.

That would be odd, the SMAPI driver has nothing to do with the ACPI
system. I don't think cross-system hooks are very popular...


> Worst case, we would get equivalent of
>
> /sys/class/battery/system_battery_acpi/...
> /sys/class/battery/system_battery_some_clever_vendor_hack/...
>
> with some values common between both of them. I'd say it is still
> better than having vendor_hack in /sys in one format while having acpi
> battery in /proc/acpi in completely different format.

Aye, we need for a consistent interface to common functionality.
How about /sys/class/battery/{acpi,apm,thinkpad}/BAT0?
So that for standard attributes, cat /sys/class/battery/*/BAT0/voltage
gives something reasonable.

  Shem
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