linux-kernel - Re: blink driver power saving

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Message-ID: <20070704215701.GA1896@elf.ucw.cz>
Date:	Wed, 4 Jul 2007 23:57:01 +0200
From:	Pavel Machek <pavel@....cz>
To:	Dmitry Torokhov <dtor@...ightbb.com>
Cc:	Andi Kleen <ak@...e.de>, Indan Zupancic <indan@....nu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, bwalle@...e.de
Subject: Re: blink driver power saving

On Tue 2007-07-03 01:42:35, Dmitry Torokhov wrote:
> On Monday 02 July 2007 19:08, Pavel Machek wrote:
> > On Mon 2007-07-02 14:39:27, Andi Kleen wrote:
> > > 
> > > > > Perhaps one of you geniuses who all hate it can find a better way to
> > > > > solve the "video output dead after kexec; but need visual feedback to the user
> > > > > while crash dumping" problem. I'm waiting for your patches.
> > > > >
> > > > 
> > > > I don't don't like it ;) Unfortunately too many people end up enabling
> > > 
> > > Yes that's pretty weird. I admit I hadn't expected
> > > that problem. blink is equivalent to "annoy me" and it
> > > is a mystery why so many people should willingly ask their computer to 
> > > annoy them.
> > 
> > tristate "Keyboard blink driver"
> > 
> > ...drivers are not expected to act on their own. I was expecting to
> > get nice /sys/class/led* interface to my keyboard leds.
> > 
> > BTW ... I still believe we should have /sys/class/led* interface to
> > those leds. I'd like to make them blink with hdd activity on some
> > machines... of course, that needs non-buggy KBC.
> 
> I'll take patches. Ofcourse we'll have to keep the current EV_LED interface
> for compatibility.

Update.. both your and mine code seem to do something here -- but they
only keep turning the led off. If I press numlock to turn it on, they
will turn it off. Strange.
								Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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