1 /* 2 * Copyright 2008 Extreme Engineering Solutions, Inc. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * Version 2 as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program; if not, write to the Free Software 15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 16 * MA 02111-1307 USA 17 */ 18 19 #ifndef __PCA953X_H_ 20 #define __PCA953X_H_ 21 22 #define PCA953X_IN 0x00 23 #define PCA953X_OUT 0x01 24 #define PCA953X_POL 0x02 25 #define PCA953X_CONF 0x03 26 27 #define PCA953X_OUT_LOW 0 28 #define PCA953X_OUT_HIGH 1 29 #define PCA953X_POL_NORMAL 0 30 #define PCA953X_POL_INVERT 1 31 #define PCA953X_DIR_OUT 0 32 #define PCA953X_DIR_IN 1 33 34 int pca953x_set_val(u8 chip, uint mask, uint data); 35 int pca953x_set_pol(u8 chip, uint mask, uint data); 36 int pca953x_set_dir(u8 chip, uint mask, uint data); 37 int pca953x_get_val(u8 chip); 38 39 #endif /* __PCA953X_H_ */ 40