31 lines
681 B
C++
31 lines
681 B
C++
#include "DevUtil.h"
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#include <fstream>
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#include "stringex.hpp"
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#define IOEXPORTPATH "/sys/class/gpio/export"
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#define PWMEXPORTPATH "/sys/class/pwm/pwmchip%d/export"
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int read_dev_i(std::string path) {
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int val = -1;
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std::ifstream ifin(path.c_str());
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ifin >> val;
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return val;
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}
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std::string read_dev_s(std::string path) {
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std::string val;
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std::ifstream ifin(path.c_str());
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ifin >> val;
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return val;
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}
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DeviceExport::DeviceExport()
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{
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int num = sizeof(ports) / sizeof(ports[0]);
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for (int i = 0; i < num; i++)
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write_dev(IOEXPORTPATH, ports[i]);
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num = sizeof(pwms) / sizeof(pwms[0]);
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for (int i = 0; i < num; i++)
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write_dev(string_format(PWMEXPORTPATH, pwms[i]), 0);
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}
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