From: Greg KH <greg@kroah.com>
To: Richard Hughes <hughsient@gmail.com>
Cc: Shem Multinymous <multinymous@gmail.com>,
Xavier Bestel <xavier.bestel@free.fr>,
Jean Delvare <khali@linux-fr.org>,
davidz@redhat.com, David Woodhouse <dwmw2@infradead.org>,
Dan Williams <dcbw@redhat.com>,
linux-kernel@vger.kernel.org, devel@laptop.org,
sfr@canb.auug.org.au, len.brown@intel.com,
benh@kernel.crashing.org,
linux-thinkpad mailing list <linux-thinkpad@linux-thinkpad.org>,
Pavel Machek <pavel@suse.cz>
Subject: Re: [PATCH v2] Re: Battery class driver.
Date: Wed, 1 Nov 2006 11:30:14 -0800 [thread overview]
Message-ID: <20061101193014.GA29929@kroah.com> (raw)
In-Reply-To: <1162387577.5001.7.camel@hughsie-laptop>
On Wed, Nov 01, 2006 at 01:26:17PM +0000, Richard Hughes wrote:
> On Tue, 2006-10-31 at 16:06 +0200, Shem Multinymous wrote:
> >
> > In the case at hand we have mWh and mAh, which measure different
> > physical quantities. You can't convert between them unless you have
> > intimate knowledge of the battery's chemistry and condition, which we
> > don't.
>
> I'm thinking specifically for ACPI at the moment.
>
> When ACPI can't work out a value, i.e. it's not known, it returns a
> value of 0xFFFFFFFF. This can happen either for a split second on
> disconnect, or if the hardware really doesn't know the value.
>
> With the battery class driver, how would that be conveyed? Would the
> sysfs file be deleted in this case, or would the value of the sysfs key
> be something like "<invalid>".
No, the sysfs file should just not be present.
thanks,
greg k-h
next prev parent reply other threads:[~2006-11-01 19:33 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1161628327.19446.391.camel@pmac.infradead.org>
2006-10-23 19:18 ` Battery class driver Dan Williams
2006-10-23 19:58 ` Richard Hughes
2006-10-23 20:10 ` Roland Dreier
2006-10-23 20:48 ` David Woodhouse
2006-10-24 3:44 ` Benjamin Herrenschmidt
2006-10-24 17:18 ` Richard Hughes
2006-10-25 7:42 ` [PATCH v2] " David Woodhouse
2006-10-25 9:54 ` Shem Multinymous
2006-10-25 12:11 ` David Woodhouse
2006-10-25 14:42 ` Shem Multinymous
2006-10-25 22:25 ` David Woodhouse
2006-10-25 23:39 ` Shem Multinymous
2006-10-28 12:15 ` David Woodhouse
2006-10-28 13:22 ` Richard Hughes
2006-10-28 14:34 ` Shem Multinymous
2006-10-28 14:36 ` David Woodhouse
2006-10-28 14:55 ` David Zeuthen
2006-10-28 18:52 ` Pavel Machek
2006-10-28 19:48 ` David Zeuthen
2006-10-28 21:10 ` Pavel Machek
2006-10-28 15:09 ` David Zeuthen
2006-10-28 15:31 ` David Zeuthen
2006-10-28 18:12 ` Shem Multinymous
2006-10-31 7:49 ` Greg KH
2006-10-31 13:28 ` Shem Multinymous
2006-11-01 19:31 ` Greg KH
2006-11-01 19:53 ` Shem Multinymous
2006-11-01 20:53 ` Greg KH
2006-11-01 23:55 ` [ltp] " Henrique de Moraes Holschuh
2006-11-02 3:45 ` Greg KH
2006-11-02 17:49 ` Bill Davidsen
2006-11-02 19:19 ` Richard Hughes
2006-11-02 21:20 ` Pavel Machek
2006-11-03 12:46 ` Henrique de Moraes Holschuh
2006-11-03 15:13 ` Stefan Seyfried
2006-11-02 22:01 ` Pavel Machek
2006-11-03 13:12 ` U Kuehn
2006-11-05 20:52 ` Pavel Machek
2006-11-05 21:02 ` Jean Delvare
2006-11-01 21:27 ` Pavel Machek
2006-11-01 21:32 ` Richard Hughes
2006-10-31 7:59 ` Jean Delvare
2006-10-31 13:42 ` Shem Multinymous
2006-10-31 13:51 ` Xavier Bestel
2006-10-31 14:06 ` Shem Multinymous
2006-11-01 13:26 ` Richard Hughes
2006-11-01 13:54 ` David Woodhouse
2006-11-01 14:36 ` Henrique de Moraes Holschuh
2006-11-01 16:36 ` Shem Multinymous
2006-11-01 16:55 ` Henrique de Moraes Holschuh
2006-11-01 19:30 ` Greg KH [this message]
2006-11-02 7:52 ` Jean Delvare
2006-11-02 8:39 ` Richard Hughes
2006-11-02 13:54 ` Henrique de Moraes Holschuh
2006-11-02 17:52 ` Bill Davidsen
2006-11-02 19:26 ` Richard B. Johnson
2006-11-03 13:23 ` Henrique de Moraes Holschuh
2006-11-03 14:20 ` Richard B. Johnson
2006-11-03 16:10 ` [ltp] " Henrique de Moraes Holschuh
2006-10-28 18:55 ` Pavel Machek
2006-10-28 19:53 ` David Zeuthen
2006-10-28 21:05 ` Pavel Machek
2006-10-28 21:54 ` Henrique de Moraes Holschuh
2006-10-26 9:55 ` [ltp] " FeRD
2006-10-28 5:12 ` Pavel Machek
2006-10-24 3:41 ` Benjamin Herrenschmidt
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