/* $Id: drv_generic_i2c.h,v 1.2 2005/05/08 04:32:44 reinelt Exp $ * * generic driver helper for i2c displays * * Copyright (C) 2005 Luis F. Correia <luis.f.correia@seg-social.pt> * Copyright (C) 2005 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> * * This file is part of LCD4Linux. * * LCD4Linux is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * LCD4Linux is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * * $Log: drv_generic_i2c.h,v $ * Revision 1.2 2005/05/08 04:32:44 reinelt * CodingStyle added and applied * * Revision 1.1 2005/03/28 19:39:23 reinelt * HD44780/I2C patch from Luis merged (still does not work for me) * * */ /* * * exported fuctions: * * int drv_generic_i2c_open (void) * reads 'Port' entry from config and opens * the i2c port * returns 0 if ok, -1 on failure * * int drv_generic_i2c_close (void) * closes i2c port * returns 0 if ok, -1 on failure * * unsigned char drv_generic_i2c_wire (char *name, char *deflt) * reads wiring for one data signal from config * returns 1<<bitpos or 255 on error * * void drv_generic_i2c_data (unsigned char value) * put data bits on DB1..DB8 */ #ifndef _DRV_GENERIC_I2C_H_ #define _DRV_GENERIC_I2C_H_ int drv_generic_i2c_open(const char *section, const char *driver); int drv_generic_i2c_close(void); unsigned char drv_generic_i2c_wire(const char *name, const char *deflt); void drv_generic_i2c_data(const unsigned char data); #endif