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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-08-23 22:57:00 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-08-23 23:07:47 -0700 |
| commit | e9496746cc0954c43720de0c88fef95a9d229baa (patch) | |
| tree | 6f5ff1d9bee1ea44acd343aaea69b3ccce390272 /drivers/input | |
| parent | c17ca3f5a2c98784739bbbcc3f6b6ee177f4f201 (diff) | |
| download | linux-e9496746cc0954c43720de0c88fef95a9d229baa.tar.bz2 | |
Input: wacom_w8001 - implement open and close
Implement open() and close() methods for the input device so that we
do not start the device unless there are users listening to the events.
Acked-by: Chris Bagwell <chris@cnpbagwell.com>
Tested-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/touchscreen/wacom_w8001.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c index c14412ef4648..5ece6c1f3296 100644 --- a/drivers/input/touchscreen/wacom_w8001.c +++ b/drivers/input/touchscreen/wacom_w8001.c @@ -367,6 +367,20 @@ static int w8001_command(struct w8001 *w8001, unsigned char command, return rc; } +static int w8001_open(struct input_dev *dev) +{ + struct w8001 *w8001 = input_get_drvdata(dev); + + return w8001_command(w8001, W8001_CMD_START, false); +} + +static void w8001_close(struct input_dev *dev) +{ + struct w8001 *w8001 = input_get_drvdata(dev); + + w8001_command(w8001, W8001_CMD_STOP, false); +} + static int w8001_setup(struct w8001 *w8001) { struct input_dev *dev = w8001->dev; @@ -474,7 +488,7 @@ static int w8001_setup(struct w8001 *w8001) strlcat(w8001->name, " Touchscreen", sizeof(w8001->name)); - return w8001_command(w8001, W8001_CMD_START, false); + return 0; } /* @@ -534,6 +548,11 @@ static int w8001_connect(struct serio *serio, struct serio_driver *drv) input_dev->id.version = 0x0100; input_dev->dev.parent = &serio->dev; + input_dev->open = w8001_open; + input_dev->close = w8001_close; + + input_set_drvdata(input_dev, w8001); + err = input_register_device(w8001->dev); if (err) goto fail3; |