pca954x.h 1.5 KB

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  1. /*
  2. *
  3. * pca954x.h - I2C multiplexer/switch support
  4. *
  5. * Copyright (c) 2008-2009 Rodolfo Giometti <giometti@linux.it>
  6. * Copyright (c) 2008-2009 Eurotech S.p.A. <info@eurotech.it>
  7. * Michael Lawnick <michael.lawnick.ext@nsn.com>
  8. *
  9. * This program is free software; you can redistribute it and/or modify
  10. * it under the terms of the GNU General Public License as published by
  11. * the Free Software Foundation; either version 2 of the License, or
  12. * (at your option) any later version.
  13. *
  14. * This program is distributed in the hope that it will be useful,
  15. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17. * GNU General Public License for more details.
  18. *
  19. * You should have received a copy of the GNU General Public License
  20. * along with this program; if not, write to the Free Software
  21. * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22. */
  23. #ifndef _LINUX_I2C_PCA954X_H
  24. #define _LINUX_I2C_PCA954X_H
  25. /* Platform data for the PCA954x I2C multiplexers */
  26. /* Per channel initialisation data:
  27. * @adap_id: bus number for the adapter. 0 = don't care
  28. * @deselect_on_exit: set this entry to 1, if your H/W needs deselection
  29. * of this channel after transaction.
  30. *
  31. */
  32. struct pca954x_platform_mode {
  33. int adap_id;
  34. unsigned int deselect_on_exit:1;
  35. };
  36. /* Per mux/switch data, used with i2c_register_board_info */
  37. struct pca954x_platform_data {
  38. struct pca954x_platform_mode *modes;
  39. int num_modes;
  40. };
  41. #endif /* _LINUX_I2C_PCA954X_H */