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linux
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i2c
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pca954x.h

pca954x.h 1.5 KB
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  1. /*
    2. 

  2.  *
    3. 

  3.  * pca954x.h - I2C multiplexer/switch 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
    21. 

  21.  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    22. 

  22.  */
    23. 

  23. 

  24. 

  25. #ifndef _LINUX_I2C_PCA954X_H
    26. 

  26. #define _LINUX_I2C_PCA954X_H
    27. 

  27. 

  28. /* Platform data for the PCA954x I2C multiplexers */
    29. 

  29. 

  30. /* Per channel initialisation data:
    31. 

  31.  * @adap_id: bus number for the adapter. 0 = don't care
    32. 

  32.  * @deselect_on_exit: set this entry to 1, if your H/W needs deselection
    33. 

  33.  *                    of this channel after transaction.
    34. 

  34.  *
    35. 

  35.  */
    36. 

  36. struct pca954x_platform_mode {
    37. 

  37. 	int		adap_id;
    38. 

  38. 	unsigned int	deselect_on_exit:1;
    39. 

  39. 	unsigned int	class;
    40. 

  40. };
    41. 

  41. 

  42. /* Per mux/switch data, used with i2c_register_board_info */
    43. 

  43. struct pca954x_platform_data {
    44. 

  44. 	struct pca954x_platform_mode *modes;
    45. 

  45. 	int num_modes;
    46. 

  46. };
    47. 

  47. 

  48. #endif /* _LINUX_I2C_PCA954X_H */
    49.