IBASE MRS-801-RE - Manual (Page 57)

Copyright © 2013 IBASE Technology Inc. All Rights Reserved.
49 IBASE Technology Inc.
Appendix A– I2C, GPIO, Watchdog Reference Code Coding
How to use I2C in Linux
Reading / writing i2c
i2cget.c
/*
i2cget.c - A user-space program to read an I2C register.
Copyright (C) 2005-2012 Jean Delvare <[email protected]>
Based on i2cset.c:
Copyright (C) 2001-2003 Frodo Looijaard <[email protected]>, and
Mark D. Studebaker <[email protected]>
Copyright (C) 2004-2005 Jean Delvare
This program 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 of the License, or
(at your option) any later version.
This program 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., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301 USA.
*/
#include <sys/ioctl.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>