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Input: polldev - immediately poll device upon opening 

To allow open/ioctl(EVIOCGABS)/close use pattern for polled devices read
the device in context of open() call instead of offloading the first read
to a workqueue. This will ensure that once call to open() returns device
would have cached reasonably recent axis values that can be retrieved via
appropriate ioctl.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2011-08-02 22:22:46 -07:00
parent 11205bb63e
commit 5e3e4eb1bf
1 changed files with 4 additions and 2 deletions
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6
drivers/input/input-polldev.c
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@ -49,8 +49,10 @@ static int input_open_polled_device(struct input_dev *input)
dev->open(dev);
/* Only start polling if polling is enabled */
if (dev->poll_interval > 0)
queue_delayed_work(system_freezable_wq, &dev->work, 0);
if (dev->poll_interval > 0) {
dev->poll(dev);
input_polldev_queue_work(dev);
}
return 0;
}