ioctl commands

[Henry Spencer]

Check in tty(4) for a lot of the details, but beware of a known problem:
there are at least three different places in V7 (whence Xenix) where
the tty ioctls are listed -- tty(4), sgtty.h, and sys/tty.h -- and none
of them agree.  You'll have to look at the driver to find out precisely
what your system really supports; if you have no sources and no tty(4)
manual page, all you can do is scream at your supplier.  A regular V7
tty(4) manual page will help, but is not necessarily definitive.

Do not bother looking for the ioctls whose names start with "DIOC";
they are ioctls for Bell Labs's internal "Datakit" local network, and
should never have been in the released V7 at all.  The kernel doesn't
implement them, by the way.

The FIOC ioctls should be described in ioctl(2).

The MX ioctls are for the mysterious multiplexer (adjective mine), which
is beyond human understanding.
-- 
				Henry Spencer @ U of Toronto Zoology
				{allegra,ihnp4,linus,decvax}!utzoo!henry