Commit e9496746 authored by Dmitry Torokhov's avatar Dmitry Torokhov
Browse files

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: default avatarChris Bagwell <chris@cnpbagwell.com>
Tested-by: default avatarPing Cheng <pingc@wacom.com>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent c17ca3f5

drivers/input/touchscreen/wacom_w8001.c

+20 −1
Original line number Diff line number Diff line
@@ -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;