linux C++操作gpio的类

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已于 2024-05-21 11:28:46 修改 · 560 阅读

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#linux #c++ #嵌入式硬件

于 2024-05-21 11:28:19 首次发布

类定义和构造函数:

#include <iostream>
#include <fstream>
#include <string>
#include <unistd.h> // for close
#include <sys/stat.h> // for stat

class GPIO{
   
   
public:
    GPIO(int pin) : pinNumber(pin) {
   
   }

    bool exportGPIO() {
   
   
        if (isExported()) {
   
   
            std::cout << "GPIO " << pinNumber << " is already exported." << std::endl;
            return true;
        }
        return writeToFile("/sys/class/gpio/export", std::to_string(pinNumber));
    }

    bool unexportGPIO() {
   
   
        if (!isExported()) {
   
   
            std::cout << "GPIO " << pinNumber << " is not exported." << std::endl;