ACPI: thinkpad-acpi: add input device support to hotkey subdriver
commit6a38abbf2b68e37493f2d5e8702b895a6c23ba0f
authorHenrique de Moraes Holschuh <hmh@hmh.eng.br>
Thu, 19 Jul 2007 02:45:35 +0000 (18 23:45 -0300)
committerLen Brown <len.brown@intel.com>
Sun, 22 Jul 2007 03:38:44 +0000 (21 23:38 -0400)
tree23f4e4bad740a5b866ee31d46c907756127e5fb0
parent7f5d1cd6287b7b29d210f85e2343207ac4310da2
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>
Signed-off-by: Len Brown <len.brown@intel.com>
Documentation/thinkpad-acpi.txt
drivers/misc/thinkpad_acpi.c