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

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Message-ID: <20100514163557.GA7843@srcf.ucam.org>
Date:	Fri, 14 May 2010 17:35:57 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Dmitry Torokhov <dmitry.torokhov@...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, Bastien Nocera <hadess@...ess.net>
Subject: Re: [git pull] Input updates for 2.6.34-rc6

On Fri, May 14, 2010 at 09:29:52AM -0700, Dmitry Torokhov wrote:
> On Fri, May 14, 2010 at 03:55:39PM +0100, Matthew Garrett wrote:
> > I've done some experimentation under qemu. On ACPI systems, Windows will 
> > *only* touch the keyboard controller if there's a device with an 
> > appropriate PNP HID or CID and if _STA evaluates to 0x0b or 0x0f. 
> > Otherwise it'll simply ignore the hardware entirely. By the looks of it 
> > their keyboard probing is also somewhat different to ours, but that's 
> > probably another story.
> > 
> > However, I did find a couple of device IDs that machines may produce 
> > which we don't currently check for. I'll send a patch.
> > 
> 
> I was wondering if we should be matching for _CID instead of _HID for
> mouse and keyboard.

I'm pretty sure the PNP layer will bind to either _HID or _CID.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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