diff options
Diffstat (limited to 'include/pca953x.h')
| -rw-r--r-- | include/pca953x.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/pca953x.h b/include/pca953x.h new file mode 100644 index 0000000..aa4401a --- /dev/null +++ b/include/pca953x.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2008 Extreme Engineering Solutions, Inc. + */ + +#ifndef __PCA953X_H_ +#define __PCA953X_H_ + +#define PCA953X_IN 0x00 +#define PCA953X_OUT 0x01 +#define PCA953X_POL 0x02 +#define PCA953X_CONF 0x03 + +#define PCA953X_OUT_LOW 0 +#define PCA953X_OUT_HIGH 1 +#define PCA953X_POL_NORMAL 0 +#define PCA953X_POL_INVERT 1 +#define PCA953X_DIR_OUT 0 +#define PCA953X_DIR_IN 1 + +int pca953x_set_val(u8 chip, uint mask, uint data); +int pca953x_set_pol(u8 chip, uint mask, uint data); +int pca953x_set_dir(u8 chip, uint mask, uint data); +int pca953x_get_val(u8 chip); + +#endif /* __PCA953X_H_ */ |