linux-kernel - Re: Generic battery interface

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Date:	Sun, 30 Jul 2006 14:48:07 +0300
From:	"Shem Multinymous" <multinymous@...il.com>
To:	"Valdis.Kletnieks@...edu" <Valdis.Kletnieks@...edu>
Cc:	"Vojtech Pavlik" <vojtech@...e.cz>, "Pavel Machek" <pavel@...e.cz>,
	"Brown, Len" <len.brown@...el.com>,
	"Matthew Garrett" <mjg59@...f.ucam.org>,
	"kernel list" <linux-kernel@...r.kernel.org>,
	linux-thinkpad@...ux-thinkpad.org, linux-acpi@...r.kernel.org
Subject: Re: Generic battery interface

On 7/30/06, Valdis.Kletnieks@...edu <Valdis.Kletnieks@...edu> wrote:
> If the program says '100ms' because it knows it will need to do a GUI update
> then, and you block it for 5 seconds because that's when the next value
> update happens, the user is stuck looking at their gkrellm or whatever not
> doing anything at all for 4.9 seconds....
>
> This almost forces the use of multiple threads if the program wants to do
> its own timer management.

Please read my detailed proposal, posted (and resivsed) later.

The program is not blocked by the new ioctl, it still does a poll() or
select() and can provide a timeout, as usual. The only trick is that
the poll() won't return with an input-ready event until the
appropriate time.

  Shem
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