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author | Jeff Johnston <jjohnstn@redhat.com> | 2002-05-28 22:26:36 +0000 |
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committer | Jeff Johnston <jjohnstn@redhat.com> | 2002-05-28 22:26:36 +0000 |
commit | b1f07180b5e7897f07e390e020b307e6496c9cb1 (patch) | |
tree | a2214ac6ac09c310f7fbd8c42a48f5cc58b2e4f1 /newlib/libc/sys/linux/tcsendbrk.c | |
parent | ab72c934da3502f2dcb0f52199675a0d939c039c (diff) | |
download | cygnal-b1f07180b5e7897f07e390e020b307e6496c9cb1.tar.gz cygnal-b1f07180b5e7897f07e390e020b307e6496c9cb1.tar.bz2 cygnal-b1f07180b5e7897f07e390e020b307e6496c9cb1.zip |
2002-05-28 Jeff Johnston <jjohnstn@redhat.com>
* libc/sys/linux/Makefile.am: Add support for cfspeed.c and
tcsendbrk.c.
* libc/sys/linux/Makefile.in: Regenerated.
* libc/sys/linux/termios.c: Add tcflow(), tcflush(),
tcgetpgrp(), and tcsetpgrp() functions.
* libc/sys/linux/sys/termios.h: Add include of machine/termios.h
to get __MAX_BAUD rate.
* libc/sys/linux/machine/i386/include/termios.h: New file.
* libc/include/machine/termios.h: Ditto.
* libc/sys/linux/cfspeed.c: Ditto.
* libc/sys/linux/tcsendbrk.c: Ditto.
Diffstat (limited to 'newlib/libc/sys/linux/tcsendbrk.c')
-rw-r--r-- | newlib/libc/sys/linux/tcsendbrk.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/tcsendbrk.c b/newlib/libc/sys/linux/tcsendbrk.c new file mode 100644 index 000000000..a35a4d8ce --- /dev/null +++ b/newlib/libc/sys/linux/tcsendbrk.c @@ -0,0 +1,45 @@ +/* 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; +} |