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

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Date:	Thu, 13 May 2010 10:30:23 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
cc:	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 Thu, 13 May 2010, Dmitry Torokhov wrote:
> 
> I think on the newer hardware PNP (or rather ACPI mapped onto PNP) usually 
> matches the reality.

Dmitry, you're just making things up.

I have in front of me a Core i5-670. You can't get much newer than that. 
And yes, it has a PS/2 connector at the back. And lookie here:

	[    1.756777] PNP: No PS/2 controller found. Probing ports directly.
	[    1.760645] serio: i8042 KBD port at 0x60,0x64 irq 1
	[    1.762087] serio: i8042 AUX port at 0x60,0x64 irq 12
	[    1.763591] mice: PS/2 mouse device common for all mice

so let it go. You're wrong. PS/2 is a legacy device, and exactly like the 
legacy IO memory region in 0xa000-0xffff (or the motherboard IO port 
region 0x00-0xff) it may not be mentioned by the BIOS tables. But it's 
still there.

This is also why I think it _would_ be acceptable to say that if you boot 
from EFI, you have to find the PnP devices. The whole (and only, as far as 
I know) point of EFI was that "legacy-free" thing.

		Linus
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