ACPI: thinkpad-acpi: add input device support to hotkey subdriver
commite24038e585c3bec17c6ebd89c04227034e0b6827
authorHenrique de Moraes Holschuh <hmh@hmh.eng.br>
Thu, 14 Jun 2007 19:54:14 +0000 (14 16:54 -0300)
committerHenrique de Moraes Holschuh <hmh@hmh.eng.br>
Sun, 9 Sep 2007 02:15:08 +0000 (8 23:15 -0300)
treef2c1951eb6f96f504b7f96201440176e45e9a051
parent18e261edc4606305f8dfd4214af398c9225e032e
ACPI: thinkpad-acpi: add input device support to hotkey subdriver

Add input device support to the hotkey subdriver.

Hot keys that have a valid keycode mapping are reported through the input
layer if the input device is open.  Otherwise, they will be reported as
ACPI events, as they were before.

Scan codes are reported (using EV_MSC MSC_SCAN events) along with EV_KEY
KEY_UNKNOWN events.

For backwards compatibility purposes, hot keys that used to be reported
through ACPI events are not mapped to anything meaningful by default.
Userspace is supposed to remap them if it wants to use the input device for
hot key reporting.

This patch is based on a patch by Richard Hughes <hughsient@gmail.com>.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Richard Hughes <hughsient@gmail.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Documentation/thinkpad-acpi.txt
drivers/misc/thinkpad_acpi.c