/include/linux/i2c-mux.h

https://gitlab.com/simplified-mandatory-access-control-kernel/ossecus-simplified-mandatory-access-control-kernel · C Header · 46 lines · 12 code · 6 blank · 28 comment · 0 complexity · 482e3904ec0824e05565b0e675a78557 MD5 · raw file 

    

  1. /*
    2. 

  2.  *
    3. 

  3.  * i2c-mux.h - functions for the i2c-bus mux support
    4. 

  4.  *
    5. 

  5.  * Copyright (c) 2008-2009 Rodolfo Giometti <giometti@linux.it>
    6. 

  6.  * Copyright (c) 2008-2009 Eurotech S.p.A. <info@eurotech.it>
    7. 

  7.  * Michael Lawnick <michael.lawnick.ext@nsn.com>
    8. 

  8.  *
    9. 

  9.  * This program is free software; you can redistribute it and/or modify
    10. 

  10.  * it under the terms of the GNU General Public License as published by
    11. 

  11.  * the Free Software Foundation; either version 2 of the License, or
    12. 

  12.  * (at your option) any later version.
    13. 

  13.  *
    14. 

  14.  * This program is distributed in the hope that it will be useful,
    15. 

  15.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    16. 

  16.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    17. 

  17.  * GNU General Public License for more details.
    18. 

  18.  *
    19. 

  19.  * You should have received a copy of the GNU General Public License
    20. 

  20.  * along with this program; if not, write to the Free Software
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  21.  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    22. 

  22.  */
    23. 

  23. 

  24. #ifndef _LINUX_I2C_MUX_H
    25. 

  25. #define _LINUX_I2C_MUX_H
    26. 

  26. 

  27. #ifdef __KERNEL__
    28. 

  28. 

  29. /*
    30. 

  30.  * Called to create a i2c bus on a multiplexed bus segment.
    31. 

  31.  * The mux_dev and chan_id parameters are passed to the select
    32. 

  32.  * and deselect callback functions to perform hardware-specific
    33. 

  33.  * mux control.
    34. 

  34.  */
    35. 

  35. struct i2c_adapter *i2c_add_mux_adapter(struct i2c_adapter *parent,
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  36. 				void *mux_dev, u32 force_nr, u32 chan_id,
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  37. 				int (*select) (struct i2c_adapter *,
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  38. 					       void *mux_dev, u32 chan_id),
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  39. 				int (*deselect) (struct i2c_adapter *,
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  40. 						 void *mux_dev, u32 chan_id));
    41. 

  41. 

  42. int i2c_del_mux_adapter(struct i2c_adapter *adap);
    43. 

  43. 

  44. #endif /* __KERNEL__ */
    45. 

  45. 

  46. #endif /* _LINUX_I2C_MUX_H */
    47.