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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [sys/] [linux/] [tcsendbrk.c] - Rev 217
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/* Copyright (C) 1992, 1996, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ /* Modified for newlib, May 27, 2002, by Jeff Johnston */ #include <errno.h> #include <stddef.h> #include <signal.h> #include <termios.h> #include <unistd.h> #include <sys/ioctl.h> /* Send zero bits on FD. */ int tcsendbreak (fd, duration) int fd; int duration; { /* The break lasts 0.25 to 0.5 seconds if DURATION is zero, and an implementation-defined period if DURATION is nonzero. We define a positive DURATION to be number of milliseconds to break. */ if (duration <= 0) return ioctl (fd, TCSBRK, 0); /* ioctl can't send a break of any other duration for us. This could be changed to use trickery (e.g. lower speed and send a '\0') to send the break, but for now just return an error. */ errno = (EINVAL); return -1; }
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