Date: Mon, 25 Jan 2010 08:55:33 +0100
From: Robert Millan <rmh@aybabtu.com>
To: The development of GNU GRUB <grub-devel@gnu.org>
Message-ID: <20100125075533.GG13584@thorin>
References: <201001182117.41329.szymon@janc.net.pl>
	<20100118205508.GX5847@riva.ucam.org>
	<201001202250.25774.szymon@janc.net.pl>
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Organization: free as in freedom
User-Agent: Mutt/1.5.18 (2008-05-17)
Subject: Re: [PATCH] make 'sleep --interruptible 0' interruptible
Precedence: list
Reply-To: The development of GNU GRUB <grub-devel@gnu.org>

On Wed, Jan 20, 2010 at 10:50:25PM +0100, Szymon Janc wrote:
> 
> > On the PC architecture, you can't check for Escape without having some
> > kind of delay.  Only modifier keys can be checked instantaneously.
> > 
> > http://bazaar.launchpad.net/~ubuntu-core-dev/ubuntu/lucid/grub2/lucid/annot
> > ate/head%3A/debian/patches/951_sleep_shift.diff has an alternative patch
> >  which may be helpful, and links to previous discussions.
> 
> Hmm now I see that this trivial case is no so trivial at all. Yet it would be 
> nice to have unified sollution for GRUB_HIDDEN_TIMEOUT.
> 
> Maybe extra command especially for user interactivity? It would combine 
> functionality of sleep and keystatus without need to worry about restrictions 
> mentioned in previous discussion.
> I know that this is somewhat redundant but it looks like it would be very hard 
> for 'clean' solution.

We're going to migrate to hardware drivers (at_keyboard / usb_keyboard) in the
near future.  I guess this resolves the stated problem, so I wouldn't invest a
lot of effort in finding other solutions to it.

If you want to help with polishing at_keyboard, usb_keyboard and the USB stack,
that'd be most welcome.

-- 
Robert Millan

  "Be the change you want to see in the world" -- Gandhi