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From: bwc@ganehd.UUCP (Brantley Coile)
Newsgroups: net.micro.att
Subject: Bad things on 7300 serial port
Message-ID: <122@ganehd.UUCP>
Date: Tue, 11-Feb-86 11:35:08 EST
Article-I.D.: ganehd.122
Posted: Tue Feb 11 11:35:08 1986
Date-Received: Wed, 12-Feb-86 21:47:21 EST
Distribution: net
Organization: Northeast Health District, Athens GA
Lines: 11

I have been playing with the serial port on a unixpc.
When programs running at the port try to open /dev/tty
they sleep forever.
I wrote a small program to read the state word of
the tty structure the process was sleeping on and noticed that its
state was RTO + WOPEN + ISOPEN.

	1) what does the RTO (raw timeout) bit mean?
	2) why would it wait for a pending open on a serial port?
		(I haven't set the RTS/CTS bits with an ioctl)
	3) Does anybody have any fixes for this????