tx-gxx-linux/device/gxx-linux/small_lcd/app_spi_lcd/DevUtil.cpp

#include "DevUtil.h"
#include <fstream>

#include <unistd.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <stdlib.h>
#include <fcntl.h>

int read_dev_i(std::string path) {
	int val = -1;
	std::ifstream ifin(path.c_str());
	ifin >> val;
	return val;
}

std::string read_dev_s(std::string path) {
	std::string val;
	std::ifstream ifin(path.c_str());
	ifin >> val;
	return val;
}

DeviceExport::DeviceExport()
{
	int num = sizeof(ports) / sizeof(ports[0]);
	for (int i = 0; i < num; i++)
		write_dev(IOEXPORTPATH, ports[i]);

	num = sizeof(pwms) / sizeof(pwms[0]);
	for (int i = 0; i < num; i++)
		write_dev(string_format(PWMEXPORTPATH, pwms[i]), 0);
}