pca953x.h 628 B

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  1. /*
  2. * Copyright 2008 Extreme Engineering Solutions, Inc.
  3. *
  4. * SPDX-License-Identifier: GPL-2.0
  5. */
  6. #ifndef __PCA953X_H_
  7. #define __PCA953X_H_
  8. #define PCA953X_IN 0x00
  9. #define PCA953X_OUT 0x01
  10. #define PCA953X_POL 0x02
  11. #define PCA953X_CONF 0x03
  12. #define PCA953X_OUT_LOW 0
  13. #define PCA953X_OUT_HIGH 1
  14. #define PCA953X_POL_NORMAL 0
  15. #define PCA953X_POL_INVERT 1
  16. #define PCA953X_DIR_OUT 0
  17. #define PCA953X_DIR_IN 1
  18. int pca953x_set_val(u8 chip, uint mask, uint data);
  19. int pca953x_set_pol(u8 chip, uint mask, uint data);
  20. int pca953x_set_dir(u8 chip, uint mask, uint data);
  21. int pca953x_get_val(u8 chip);
  22. #endif /* __PCA953X_H_ */