drivers/media/dvb-frontends/l64781.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3     driver for LSI L64781 COFDM demodulator
   4
   5     Copyright (C) 2001 Holger Waechtler for Convergence Integrated Media GmbH
   6                        Marko Kohtala <marko.kohtala@luukku.com>
   7
   8
   9 */
  10
  11 #ifndef L64781_H
  12 #define L64781_H
  13
  14 #include <linux/dvb/frontend.h>
  15
  16 struct l64781_config
  17 {
  18         /* the demodulator's i2c address */
  19         u8 demod_address;
  20 };
  21
  22 #if IS_REACHABLE(CONFIG_DVB_L64781)
  23 extern struct dvb_frontend* l64781_attach(const struct l64781_config* config,
  24                                           struct i2c_adapter* i2c);
  25 #else
  26 static inline struct dvb_frontend* l64781_attach(const struct l64781_config* config,
  27                                           struct i2c_adapter* i2c)
  28 {
  29         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  30         return NULL;
  31 }
  32 #endif // CONFIG_DVB_L64781
  33
  34 #endif // L64781_H