From 474db0e1425f8da03a7d49ebba1602efa503c73f Mon Sep 17 00:00:00 2001 From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> Date: Fri, 17 Oct 2008 15:28:08 -0700 Subject: [PATCH 088/134] Input: Use monotonic time for event time stamps. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Since wall time can jump backwards, it cannot be used to determine if one event occured before another or for how long a key was pressed. Signed-off-by: Arve Hjønnevåg <arve@android.com> --- drivers/input/evdev.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -74,8 +74,11 @@ static void evdev_event(struct input_han struct evdev *evdev = handle->private; struct evdev_client *client; struct input_event event; + struct timespec ts; - do_gettimeofday(&event.time); + ktime_get_ts(&ts); + event.time.tv_sec = ts.tv_sec; + event.time.tv_usec = ts.tv_nsec / NSEC_PER_USEC; event.type = type; event.code = code; event.value = value;