Re: [PATCH] Input: Support for a less exclusive grab.

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On Thu, Oct 25, 2007 at 01:37:34AM -0400, Ryan Lortie wrote:
> On Wed, 2007-24-10 at 11:35 -0400, Zephaniah E. Hull wrote:
> > We need a way to, at the absolute minimum, unbind the keyboard from the
> > text console.  The current solution sucks for things like rfkill.
> > 
> > I'm not convinced that Ryan's fix is any better, but just saying that X
> > should open the console and ignore the characters is simply not an
> > option as far as I am concerned for X.
> 
> Can you think of any other way to separate things like rfkill/evdev from
> things like the text console that's less hacky than my 'priority'
> scheme?

What we really want to give is exclusitivity verses other 'end users',
as opposed the 'filters'.

I'm defining an 'end user' to be a handler that cares about all the
events from a device and plans on doing something with it.

That would be the console layer for keyboards, /dev/input/mice and
/dev/input/mouse<n> for mice, X for both of those, etc.

A 'filter' cares about a key or two, and might even want to remove it
from the stream, rfkill is a good example.

Now, how do we design for that?  Not a clue right now, still thinking
about it really.

Zephaniah E. Hull.
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