diff options
author | Reinhard Tartler <siretart@tauware.de> | 2011-04-27 19:24:15 +0200 |
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committer | Reinhard Tartler <siretart@tauware.de> | 2011-04-27 19:24:15 +0200 |
commit | 181cec4348da40331b3e8ab365732c025ec149b2 (patch) | |
tree | e2e749be67c8253a8096aaf92aab9c51f1a17f7f /drv_generic_i2c.h | |
download | lcd4linux-181cec4348da40331b3e8ab365732c025ec149b2.tar.gz |
Import upstream version 0.11.0~svn1143
Diffstat (limited to 'drv_generic_i2c.h')
-rw-r--r-- | drv_generic_i2c.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drv_generic_i2c.h b/drv_generic_i2c.h new file mode 100644 index 0000000..52a2718 --- /dev/null +++ b/drv_generic_i2c.h @@ -0,0 +1,61 @@ +/* $Id: drv_generic_i2c.h 771 2007-02-25 12:27:26Z michael $ + * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/drv_generic_i2c.h $ + * + * 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. + * + */ + +/* + * + * 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 |