init

Readme.md

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+# Readme
+Projecto to create a CPP class for managing GPIO of beagle bone black.
+

main.cpp

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+/*To test the gpio class for BeagleBone Black
+ Gerardo Marx, April/20/2020*/
+#include<iostream> // to input/output strings
+#include<fstream>
+#include<sstream>
+#define GPIO_PATH "/sys/class/gpio/gpio"
+
+int main(int argc, char *argv[]){
+  if(argc!=2){
+    std::cout << "The command usage is gpio #" << std::endl;
+    std::cout << "where # is the gpio number" << std:: endl;
+    return 2;
+  }
+  std::cout << "Starting program" << std::endl;
+  int number = 44; // gpio
+  std::string path;
+  std::ostringstream s;
+  std::ofstream fs;
+  std::string file = "direction";
+  s << GPIO_PATH << number; // gpio path
+  path = std::string(s.str());
+  fs.open((path + file).c_str());
+  fs << "output";
+  fs.close();
+  return 0;
+}

makefile

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+all:
+	g++ main.cpp -o gpio
+
+debug: 
+	g++ -g main.cpp -o gpio