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a9d650fb4d
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@727 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
/* $Id$
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* $URL$
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*
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* generic driver helper for i2c displays
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*
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* Copyright (C) 2005 Luis Correia <lfcorreia@users.sf.net>
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* Copyright (C) 2005 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
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*
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* This file is part of LCD4Linux.
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*
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* LCD4Linux is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* LCD4Linux is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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/*
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*
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* exported fuctions:
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*
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* int drv_generic_i2c_open (void)
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* reads 'Port' entry from config and opens
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* the i2c port
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* returns 0 if ok, -1 on failure
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*
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* int drv_generic_i2c_close (void)
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* closes i2c port
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* returns 0 if ok, -1 on failure
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*
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* unsigned char drv_generic_i2c_wire (char *name, char *deflt)
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* reads wiring for one data signal from config
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* returns 1<<bitpos or 255 on error
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*
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* void drv_generic_i2c_data (unsigned char value)
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* put data bits on DB1..DB8
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*
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* void drv_generic_i2c_command(unsigned char command, unsigned char *data,unsigned char length)
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* send command and the data to the i2c device
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*
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*/
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#ifndef _DRV_GENERIC_I2C_H_
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#define _DRV_GENERIC_I2C_H_
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int drv_generic_i2c_open(const char *section, const char *driver);
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int drv_generic_i2c_close(void);
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unsigned char drv_generic_i2c_wire(const char *name, const char *deflt);
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void drv_generic_i2c_data(const unsigned char data);
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void drv_generic_i2c_command(const unsigned char command, const unsigned char *data, const unsigned char length);
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#endif /*
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*/
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