/drivers/i2c/i2c-core.h

https://bitbucket.org/cresqo/cm7-p500-kernel · C Header · 33 lines · 9 code · 4 blank · 20 comment · 0 complexity · 2425991f21bc979feafa1351e91228df MD5 · raw file 

    

  1. /*
    2. 

  2.  * i2c-core.h - interfaces internal to the I2C framework
    3. 

  3.  *
    4. 

  4.  * This program is free software; you can redistribute it and/or modify
    5. 

  5.  * it under the terms of the GNU General Public License as published by
    6. 

  6.  * the Free Software Foundation; either version 2 of the License, or
    7. 

  7.  * (at your option) any later version.
    8. 

  8.  *
    9. 

  9.  * This program is distributed in the hope that it will be useful,
    10. 

  10.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11. 

  11.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12. 

  12.  * GNU General Public License for more details.
    13. 

  13.  *
    14. 

  14.  * You should have received a copy of the GNU General Public License
    15. 

  15.  * along with this program; if not, write to the Free Software
    16. 

  16.  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    17. 

  17.  */
    18. 

  18. 

  19. #include <linux/rwsem.h>
    20. 

  20. 

  21. struct i2c_devinfo {
    22. 

  22. 	struct list_head	list;
    23. 

  23. 	int			busnum;
    24. 

  24. 	struct i2c_board_info	board_info;
    25. 

  25. };
    26. 

  26. 

  27. /* board_lock protects board_list and first_dynamic_bus_num.
    28. 

  28.  * only i2c core components are allowed to use these symbols.
    29. 

  29.  */
    30. 

  30. extern struct rw_semaphore	__i2c_board_lock;
    31. 

  31. extern struct list_head	__i2c_board_list;
    32. 

  32. extern int		__i2c_first_dynamic_bus_num;
    33.