Input: add input_get_poll_interval()

Some drivers need to be able to know the current polling interval for
devices working in polling mode, let's allow them fetching it.

Acked-By: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Michal Vokáč <michal.vokac@ysoft.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/input-poller.c b/drivers/input/input-poller.c
index 1b3d28964bb23db3508b5f977e936170bd1fbc95..7d6b4e8879f11d84417c59ea4b1ab078de959902 100644 (file)
--- a/drivers/input/input-poller.c
+++ b/drivers/input/input-poller.c
@@ -123,6 +123,15 @@ void input_set_max_poll_interval(struct input_dev *dev, unsigned int interval)
 }
 EXPORT_SYMBOL(input_set_max_poll_interval);
 
+int input_get_poll_interval(struct input_dev *dev)
+{
+       if (!dev->poller)
+               return -EINVAL;
+
+       return dev->poller->poll_interval;
+}
+EXPORT_SYMBOL(input_get_poll_interval);
+
 /* SYSFS interface */
 
 static ssize_t input_dev_get_poll_interval(struct device *dev,

diff --git a/include/linux/input.h b/include/linux/input.h
index 94f277cd806a81c2148b380b1756951871edd019..56f2fd32e6096382e047f5cf2704adc23d404cf6 100644 (file)
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -383,6 +383,7 @@ int input_setup_polling(struct input_dev *dev,
 void input_set_poll_interval(struct input_dev *dev, unsigned int interval);
 void input_set_min_poll_interval(struct input_dev *dev, unsigned int interval);
 void input_set_max_poll_interval(struct input_dev *dev, unsigned int interval);
+int input_get_poll_interval(struct input_dev *dev);
 
 int __must_check input_register_handler(struct input_handler *);
 void input_unregister_handler(struct input_handler *);