diff -r 3345048104fc -r fc24e3b47731 me8100_test_dio/wtest.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/me8100_test_dio/wtest.c	Wed Jan 16 15:54:58 2002 +0100
@@ -0,0 +1,69 @@
+/*
+ * Source File : me8100_test_dio.c
+ * Destination : me8100_test_dio
+ * Author      : GG (Guenter Gebhardt)                                 
+ *    
+ *                                                                     
+ * File History: Version   Date       Editor   Action                  
+ *---------------------------------------------------------------------
+ *               1.00.00   01.07.12   GG       first release           
+ *                                                                     
+ *---------------------------------------------------------------------
+ *                                                                     
+ * Description:
+ *   This program shows the use of the driver and the digital inputs
+ *   and outputs. First the outputs are tested in sink and source mode. 
+ *   Then the inputs are tested.
+ */
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <signal.h>
+
+#include "me8100.h"
+
+int main(void){
+  int err = 0;
+  static int file_handle = -1;
+
+  unsigned short ctrl_a;
+  unsigned short value_a;
+
+  printf("Write test, PID: %d\n", getpid());
+  file_handle = open("/dev/me8100_0", O_RDWR, 0);
+
+  if(file_handle < 0){
+    printf("Cannot open path !\n");
+    return 1;
+  }
+
+  /* Write.
+   * HACK: The driver itself should remember the status
+   * of the IRQ bits in its control register
+   */
+  ctrl_a = ME8100_CTL_ENIO | ME8100_CTL_SOURCE | ME8100_CTL_IRQ_MASK;
+  err = ioctl(file_handle, ME8100_WRITE_CTRL_A, &ctrl_a);
+  if (err) {
+    fprintf(stderr, "Can't setup output to port A\n");
+    return 1;
+  }
+
+  value_a = 0x00;
+  for (value_a = 0x00; value_a < 0xffff; ++value_a) {
+    ioctl(file_handle, ME8100_WRITE_DO_A, &value_a);
+    printf("Wrote %04x\n", value_a);
+    sleep(3);
+  }
+
+  err = close(file_handle);
+  if(err){
+    printf("Kann Pfad nicht schliessen\n");
+    return 1;
+  }
+
+  return 0;
+}
+/*
+	vim:sts=2 sw=2 aw ai sm:
+*/