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/* $Id: drv_generic_i2c.h,v 1.6 2006/02/27 06:15:55 reinelt Exp $
*
* generic driver helper for i2c displays
*
* Copyright (C) 2005 Luis Correia <lfcorreia@users.sf.net>
* 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 1.6 2006/02/27 06:15:55 reinelt
* indent...
*
* Revision 1.5 2006/02/25 13:36:33 geronet
* updated indent.sh, applied coding style
*
* Revision 1.4 2005/05/31 21:32:00 lfcorreia
* fix my email address
*
* Revision 1.3 2005/05/31 20:42:55 lfcorreia
* new file: lcd4linux_i2c.h
* avoid the problems detecting the proper I2C kernel include files
*
* rearrange all the other autoconf stuff to remove I2C detection
*
* new method by Paul Kamphuis to write to the I2C device
*
* 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
*
* void drv_generic_i2c_command(unsigned char command, unsigned char *data,unsigned char length)
* send command and the data to the i2c device
*
*/
#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);
void drv_generic_i2c_command(const unsigned char command, const unsigned char *data, const unsigned char length);
#endif /*
*/
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