linux-kernel - Changes to include/linux/input.h are no longer taken into account

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Message-ID: <CAJuji_EeLBCB4qpbCQLGFgqAqsWJ97qKYPK8b7hDa91Xr50Tmg@mail.gmail.com>
Date:	Sat, 27 Aug 2011 22:44:30 +0200
From:	Marcel Korpel <marcel.lists@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: Changes to include/linux/input.h are no longer taken into account

Hi,

Up until recently, in order to be able to use the zoom slider on my MS
Natural Ergonomic Keyboard 4000 I used a patched version of
include/linux/input.h, in which a few definitions were changed so
several special keys produced keycodes <= 255, like

#define KEY_ZOOMIN		0x0f6	/* AC Zoom In == 246 */
#define KEY_ZOOMOUT		0x0f7	/* AC Zoom Out == 247  */

Now X is able to process these keycodes.

Earlier this month, I upgraded the kernel and made sure that input.h
still contained these changed values. However, when I use showkey I
get the following output

keycode 418 press
keycode 418 release
keycode 419 press
keycode 419 release

instead of the lower values I provided. I flipped through the latest
kernel changes, but was not able to find a change that might have
influenced the keycodes, only one change about the inclusion order
inside linux/input.h [1]. I am currently using commit
d31bf2883542cd3414674238f94123bd1d9c0b9f.

I know that the actual problem resides in the way how X handles
keycodes [2] and it can (also) be circumvented using a patched
xf86-input-evdev [3], but I still think this case is a bug.

Kind regards, Marcel

[1] http://lkml.indiana.edu/hypermail//linux/kernel/1107.3/02089.html
[2] https://bugs.freedesktop.org/show_bug.cgi?id=11227
[3] http://www.thenautilus.net/SW/xf86-input-evdev/
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