|  | /* | 
|  | * AD7879/AD7889 touchscreen (bus interfaces) | 
|  | * | 
|  | * Copyright (C) 2008-2010 Michael Hennerich, Analog Devices Inc. | 
|  | * | 
|  | * Licensed under the GPL-2 or later. | 
|  | */ | 
|  |  | 
|  | #ifndef _AD7879_H_ | 
|  | #define _AD7879_H_ | 
|  |  | 
|  | #include <linux/types.h> | 
|  |  | 
|  | struct ad7879; | 
|  | struct device; | 
|  |  | 
|  | struct ad7879_bus_ops { | 
|  | u16 bustype; | 
|  | int (*read)(struct device *dev, u8 reg); | 
|  | int (*multi_read)(struct device *dev, u8 first_reg, u8 count, u16 *buf); | 
|  | int (*write)(struct device *dev, u8 reg, u16 val); | 
|  | }; | 
|  |  | 
|  | void ad7879_suspend(struct ad7879 *); | 
|  | void ad7879_resume(struct ad7879 *); | 
|  | struct ad7879 *ad7879_probe(struct device *dev, u8 devid, unsigned irq, | 
|  | const struct ad7879_bus_ops *bops); | 
|  | void ad7879_remove(struct ad7879 *); | 
|  |  | 
|  | #endif |