> What is the "COM_BIDIR" patch and what is it supposed to do/correct?

It isn't necessary any more, since "ttyflags -a" now sets up all 
ttys mentioned in /etc/ttys to the mode you want them in, my modem line
looks like this:

> # modem under control of mgetty:
> tty01 "/usr/libexec/mgetty tty01"	vt100  on local rtscts


Martin

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