tree 0472b6a3071c9cddefd35fb8544bcff4883fd387
parent b4c7f66a8cf9dc75c92909e06f9712922c08537d
author Mike Lockwood <lockwood@android.com> 1323710370 +0800
committer Andy Green <andy.green@linaro.org> 1326079009 +0800

input: keychord: Add keychord driver

This driver allows userspace to receive notification when client
specified key combinations are pressed.
The client opens /dev/keychord and writes a list of keychords
for the driver to monitor.
The client then reads or polls /dev/keychord for notifications.
A client specified ID for the keychord is returned from read()
when a keychord press is detected.

Signed-off-by: Mike Lockwood <lockwood@android.com>

keychord: fix to build without CONFIG_PREEMPT

Change-Id: I911f13aeda4224b6fa57863bc7e8972fec8837fb