Revert "V1: switch.c"

V1/switch.c

@@ -1,120 +0,0 @@
-/*
- * switch.c
- * How to register an button and count this
- * author: Simon Wörner, Manuel Vögele,
- * 	   Siegfried Kienzle
- * 24-March-2017
- *  
- *  */
-
-#define BUTTON "17"
-#define IN "in\n"
-#define OUT "out\n"
-#define HIGH "1\n"
-#define LOW "0\n"
-#define MAXBYTES 1
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-int writeIntoFile(char* value, char* path)
-{
-	int fd;
-	char buffer[3];
-	strcpy(buffer, value);
-	if((fd=open(path, O_RDWR | O_CREAT | O_TRUNC)) == -1) {
-		perror(NULL);
-		return EXIT_FAILURE;
-	}
-
-	if((write(fd, &buffer, sizeof(buffer))) == -1) {
-		perror("Cannot write into file");
-		return EXIT_FAILURE;			
-	} 	
-	printf("Success");
-	close(fd);
-	return EXIT_SUCCESS;	
-}
-
-int reserve(char* gpioPort)
-{
-	char str[3];
-	strcpy(str, gpioPort);
-	strcat(str, "\n");
-	return writeIntoFile(str,"/sys/class/gpio/export");
-}
-
-int setDirection(char* gpioPort, char* inOut)
-{
-	char *direc = "/direction";
-	char *gpioPath = "/sys/class/gpio/gpio";	
-	char path[32];
-	strcpy(path, gpioPath);
-    strcat(path, gpioPort);
-	strcat(path, direc);
-	return writeIntoFile(inOut, path);
-}
-
-int setOutput(char* gpioPort, char* volt)
-{
-	char *val = "/value";
-	char *gpioPath = "/sys/class/gpio/gpio";
-	char path[28];
-	strcpy(path, gpioPath);
-	strcat(path, gpioPort);
-	strcat(path, val);
-	return writeIntoFile(volt, path);
-}
-
-int mainLoop(char* gpioPort)
-{
-	int fid, portValue, count, countButton;
-	char *val = "/value";
-	char *gpioPath = "/sys/class/gpio/gpio";
-	char path[28];
-	strcpy(path, gpioPath);
-	strcat(path, gpioPort);
-	strcat(path, val);
-	
-	while(true)
-	{
-		if( (fid=open(path, O_RDONLY)) == -1)
-			perror("Fehler ");
-		if(readInput(fid) == 1)
-		{
-			countButton++;
-			printf("%d", countButton);
-		}
-		
-	
-		close(fid);
-	}
-}
-
-char[] readInput(int fid)
-{
-	char buffer[MAXBYTES];
-	read(fid, &buffer, MAXBYTES);
-	return buffer;
-}
-
-int unexport(char* gpioport)
-{
-	char str[3];
-	strcpy(str, gpioPort);
-	strcat(str, "\n");
-	return writeIntoFile(str,"/sys/class/gpio/unexport");
-}
-
-
-int main()
-{  
-	reserve(BUTTON);
-	setDirection(BUTTON, IN);
-	mainLoop(BUTTON);
-	unexport(BUTTON);
-	return 0;
-}