linux-kernel - Add INPUT support to toshiba

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Message-Id: <1180614979.2693.26.camel@localhost.localdomain>
Date:	Thu, 31 May 2007 13:36:19 +0100
From:	Richard Hughes <hughsient@...il.com>
To:	John Belmonte <john@...gie.net>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-acpi <linux-acpi@...r.kernel.org>,
	Bastien Nocera <hadess@...ess.net>
Subject: Add INPUT support to toshiba_acpi

Attached patch adds a kernel thread to do polling on Toshiba hardware.

Toshiba hardware is a little oddball, and does not provide ACPI events
on some key presses, typically Fn hotkey buttons. The key interface is
now polled, and events now matched to a list of toshiba specific
scancodes, and are squirted to userspace using the INPUT subsystem.

This means that toshiba laptops buttons "just work" without any
userspace daemon (using uinput) such as fnfx or bodges such as using a
userspace hal addon. Doing the polling in kernel is more efficient, and
makes stuff just work out of the box. You can assign the keys using
standard X keymaps, or using tools such as gnome-keybinding-properties.

This is similar to other patches sent for the thinkpad_acpi driver, and
is part of the "Unf*ck my keyboard" initiative to make multimedia keys
just work.

Changes from the first patch involve switching to a workqueue for the
polling, not breaking the spaces in "hotkeys_via_input" and also masking
out the fn key button up.

 toshiba_acpi.c |  228 +++++++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 206 insertions(+), 22 deletions(-)

Signed-off-by: Richard Hughes <richard@...hsie.com>

View attachment "toshiba_acpi_input_02.patch" of type "text/x-patch" (8921 bytes)