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Input: add open and close methods for polled devices

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Optional open and close methods for preparing and closing
the device.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Samu Onkalo 2009-10-18 00:38:57 -07:00 committed by Dmitry Torokhov
parent bc09dcadc1
commit b0aba1e66c
3 changed files with 13 additions and 7 deletions
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7
drivers/input/input-polldev.c
View file

@ -80,8 +80,8 @@ static int input_open_polled_device(struct input_dev *input)
if (error)
return error;
if (dev->flush)
dev->flush(dev);
if (dev->open)
dev->open(dev);
queue_delayed_work(polldev_wq, &dev->work,
msecs_to_jiffies(dev->poll_interval));
@ -95,6 +95,9 @@ static void input_close_polled_device(struct input_dev *input)
cancel_delayed_work_sync(&dev->work);
input_polldev_stop_workqueue();
if (dev->close)
dev->close(dev);
}
/**

2
drivers/input/misc/wistron_btns.c
View file

@ -1263,7 +1263,7 @@ static int __devinit setup_input_dev(void)
if (!wistron_idev)
return -ENOMEM;
wistron_idev->flush = wistron_flush;
wistron_idev->open = wistron_flush;
wistron_idev->poll = wistron_poll;
wistron_idev->poll_interval = POLL_INTERVAL_DEFAULT;

11
include/linux/input-polldev.h
View file

@ -14,9 +14,11 @@
/**
* struct input_polled_dev - simple polled input device
* @private: private driver data
* @flush: driver-supplied method that flushes device's state upon
* opening (optional)
* @private: private driver data.
* @open: driver-supplied method that prepares device for polling
* (enabled the device and maybe flushes device state).
* @close: driver-supplied method that is called when device is no
* longer being polled. Used to put device into low power mode.
* @poll: driver-supplied method that polls the device and posts
* input events (mandatory).
* @poll_interval: specifies how often the poll() method shoudl be called.
@ -30,7 +32,8 @@
struct input_polled_dev {
void *private;
void (*flush)(struct input_polled_dev *dev);
void (*open)(struct input_polled_dev *dev);
void (*close)(struct input_polled_dev *dev);
void (*poll)(struct input_polled_dev *dev);
unsigned int poll_interval; /* msec */