2021-07-24 16:25:03 -05:00

53 lines
1.3 KiB
C

/*
* This file is part of Moonlight Embedded.
*
* Copyright (C) 2017 Iwan Timmer
*
* Moonlight is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Moonlight is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Moonlight; if not, see <http://www.gnu.org/licenses/>.
*/
#include "util.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
int blank_fb(char *path, bool clear) {
int fd = open(path, O_RDWR);
if(fd >= 0) {
int ret = write(fd, clear ? "1" : "0", 1);
if (ret < 0)
fprintf(stderr, "Failed to clear framebuffer %s: %d\n", path, ret);
close(fd);
return 0;
} else
return -1;
}
int read_file(char *path, char* output, int output_len) {
int fd = open(path, O_RDONLY);
if(fd >= 0) {
output_len = read(fd, output, output_len);
close(fd);
return output_len;
} else
return -1;
}