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From: matt@oddjob.UChicago.UUCP (Matt Crawford)
Newsgroups: net.unix-wizards
Subject: unsupported ioctls in 4.2: TIOCMODG ?
Message-ID: <298@oddjob.UChicago.UUCP>
Date: Mon, 18-Jun-84 23:20:44 EDT
Article-I.D.: oddjob.298
Posted: Mon Jun 18 23:20:44 1984
Date-Received: Fri, 22-Jun-84 09:57:24 EDT
Organization: U. Chicago: Astronomy & Astrophysics
Lines: 10

The drivers for the terminal multiplexors under 4.2 seem to support a set
of ioctls which set/get the modem bits.  The front end sys/tty.c does not
have them in its big switch statement, so 
	retn = ioctl(1, TIOCMODG, &bits);
returns -1.  I have a need for this call.  Can I just add a few cases to
the switch, or are these left out because they won't work?  Thanks for any
info available.
___________________________________________________________
Matt		University	ARPA: crawford@anl-mcs.arpa
Crawford	of Chicago	UUCP: ihnp4!oddjob!matt