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Add option --no-tty-restore / -N that omits tty_restore() call #334

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On exit, do not reset the tty device settings to the state they were in
before the program started.
This is effective when sending characters at a low baud rate and then
immediately exiting, to ensure that the last character is output
correctly.
This commit is contained in:
yabu76 2025-12-31 15:14:18 +09:00
parent e73ff6d208
commit c74273ecaa
9 changed files with 34 additions and 3 deletions
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7
src/tty.c
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@ -2706,10 +2706,13 @@ int tty_connect(void)
rs485_mode_enable(device_fd);
}
/* Make sure we restore tty settings on exit */
/* Make sure we restore tty settings on exit unless ordered to keep current settings */
if (first)
{
atexit(&tty_restore);
if (option.no_tty_restore == false)
{
atexit(&tty_restore);
}
first = false;
}