|  | /* | 
|  | *   Sharp s921 driver | 
|  | * | 
|  | *   Copyright (C) 2009 Mauro Carvalho Chehab <mchehab@redhat.com> | 
|  | *   Copyright (C) 2009 Douglas Landgraf <dougsland@redhat.com> | 
|  | * | 
|  | *   This program is free software; you can redistribute it and/or | 
|  | *   modify it under the terms of the GNU General Public License as | 
|  | *   published by the Free Software Foundation version 2. | 
|  | * | 
|  | *   This program is distributed in the hope that it will be useful, | 
|  | *   but WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU | 
|  | *   General Public License for more details. | 
|  | */ | 
|  |  | 
|  | #ifndef S921_H | 
|  | #define S921_H | 
|  |  | 
|  | #include <linux/kconfig.h> | 
|  | #include <linux/dvb/frontend.h> | 
|  |  | 
|  | struct s921_config { | 
|  | /* the demodulator's i2c address */ | 
|  | u8 demod_address; | 
|  | }; | 
|  |  | 
|  | #if IS_ENABLED(CONFIG_DVB_S921) | 
|  | extern struct dvb_frontend *s921_attach(const struct s921_config *config, | 
|  | struct i2c_adapter *i2c); | 
|  | extern struct i2c_adapter *s921_get_tuner_i2c_adapter(struct dvb_frontend *); | 
|  | #else | 
|  | static inline struct dvb_frontend *s921_attach( | 
|  | const struct s921_config *config, struct i2c_adapter *i2c) | 
|  | { | 
|  | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); | 
|  | return NULL; | 
|  | } | 
|  | static struct i2c_adapter * | 
|  | s921_get_tuner_i2c_adapter(struct dvb_frontend *fe) | 
|  | { | 
|  | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); | 
|  | return NULL; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | #endif /* S921_H */ |