Kontron KTAM3874-pITX - Manual (Page 52)

KTD-S0057-I Page 48 Linux® Programming Examples (DebianTM)
KTAM3874/pITX Software Guide
10.3.2 I 2 C TM Display Interface
The graphic module from Electronic Assembly can also be driven via the I 2 C TM bus. The schematic is a bit
different. Please notice that this draft only serves for demonstration purposes but not for real applications.
Note: Please perform a RESET before you execute the test program.
The sourcecode is based on the SPI
TM example (needs root rights):
/* I2C test program for
* Electronic Assembly graphic module eDIP128-6
* Copyright (c) 2013 Kontron Technology A/S
* 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.
*/
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <linux/types.h>