linux-kernel - Re: [git pull] Input updates for 2.6.34-rc6

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Message-ID: <20100528051020.GC2663@core.coreip.homeip.net>
Date:	Thu, 27 May 2010 22:10:20 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Robert Hancock <hancockrwd@...il.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
	Bastien Nocera <hadess@...ess.net>
Subject: Re: [git pull] Input updates for 2.6.34-rc6

On Thu, May 27, 2010 at 10:05:52PM -0600, Robert Hancock wrote:
> On 05/27/2010 07:03 PM, Dmitry Torokhov wrote:
> >On May 27, 2010, at 5:46 PM, Linus Torvalds
> ><torvalds@...ux-foundation.org> wrote:
> >
> >>
> >>
> >>On Thu, 27 May 2010, Robert Hancock wrote:
> >>>
> >>>It's highly unlikely that they are incomplete in this respect, as
> >>>since I mentioned, Windows would fail to recognize the PS/2 controller
> >>>that people would expect to work, which would most likely get
> >>>noticed..
> >>
> >>Did you miss the part where I actually quoted my own modern Core i5
> >>machine that _does_ have a keyboard controller, and _does_ have a
> >>keyboard
> >>port, and that does _not_ mention them in the PnP tables?
> >
> >Except that it _does_. But _our_ ACPI implementation drops all inactive
> >devices so our PNP layer does not see your mouse and keyboard ports.
> 
> That's likely true - 

This was not a guess - I have seen DSDT from Linus' box.

That is why I said I'd be happy applying Metthew's patch if our ACPI did
not drop inactive devices - it would leave Apple and newer boxes alone
while still allowing plugging in keyboard/mouse in boxes that do have
i8042 even if BIOS decided to hide it from Windows.

-- 
Dmitry
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