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From: mri@fungus.bsd.uchicago.edu (Xiaoping Hu)
Newsgroups: comp.lang.c
Subject: signal SIGIO
Message-ID: <1990Jul11.163028.15488@midway.uchicago.edu>
Date: 11 Jul 90 16:30:28 GMT
Sender: news@midway.uchicago.edu (News Administrator)
Reply-To: mri@fungus.bsd.uchicago.edu (Xiaoping Hu)
Distribution: usa
Organization: University Of Chicago, Dept. of Radiation-Oncology
Lines: 6

Hai everyone out there,
	Does anybody know when we requested signal SIGIO on a serial
	port,which serial line and what condition of the serial line
	does the system monitor before considering input/output is
	possible on the port ?  I would appreciate very much if
	anybody can give me a hint.