linux-kernel - Re: [PATCH v2] Re: Battery class driver.

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Date:	Wed, 01 Nov 2006 21:32:40 +0000
From:	Richard Hughes <hughsient@...il.com>
To:	Pavel Machek <pavel@....cz>
Cc:	Shem Multinymous <multinymous@...il.com>, Greg KH <greg@...ah.com>,
	David Zeuthen <davidz@...hat.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Dan Williams <dcbw@...hat.com>, linux-kernel@...r.kernel.org,
	devel@...top.org, sfr@...b.auug.org.au, len.brown@...el.com,
	benh@...nel.crashing.org,
	linux-thinkpad mailing list <linux-thinkpad@...ux-thinkpad.org>,
	Jean Delvare <khali@...ux-fr.org>
Subject: Re: [PATCH v2] Re: Battery class driver.

On Wed, 2006-11-01 at 22:27 +0100, Pavel Machek wrote:
> > The drawback is that someone in userspace who doesn't care about
> units
> > but just wants to show a status report or compute the amount of
> > remaining fooergy divided by the amount of a fooergy when fully
> > charged, like your typical battery applet, will need to parse
> > filenames (or try out a fixed and possibly partial list) to find out
> > which attribute files contain the numbers.
> 
> That's okay, we want userspace to use common library, and doing
> 
> echo $[`cat capacity_remaining:*` / `cat capacity_total:*`]
> 
> is not exactly rocket science. If greg does not like units suffixes,
> that's okay, too, I'm sure handy wildcard match will be possible.

I'm guessing adding the new code to HAL will allow most stuff to keep
working without any changes. I think battstat-applet defaults to using
HAL, and I'm sure gnome-power-manager does. :-)

Richard.

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