mirror of
https://github.com/FunKey-Project/fkgpiod.git
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65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
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Copyright (C) 2020-2021 Vincent Buso <vincent.buso@funkey-project.com>
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Copyright (C) 2021 Michel Stempin <michel.stempin@funkey-project.com>
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This file is part of the FunKey S GPIO keyboard daemon.
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This is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The software is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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*/
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/**
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* @file termfix.c
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* This file contains a function to unlock and force a vt back into text mode
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*/
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#include <sys/ioctl.h>
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#include <errno.h>
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#include <string.h>
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#include <stdio.h>
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#include <linux/vt.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <linux/kd.h>
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#include <linux/keyboard.h>
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int main(int argc, char** argv)
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{
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if (argc != 2) {
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printf("usage: termfix /dev/ttyX\n");
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return 2;
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}
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int fd = open(argv[1], O_RDWR, 0);
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int res = ioctl(fd, VT_UNLOCKSWITCH, 1);
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if (res != 0) {
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perror("ioctl VT_UNLOCKSWITCH failed");
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return 3;
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}
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ioctl(fd, KDSETMODE, KD_TEXT);
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if (res != 0) {
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perror("ioctl KDSETMODE failed");
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return 3;
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}
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printf("Success\n");
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return res;
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}
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