Control and Status calls?

[Info-Mac]

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From: info-mac@uw-beaver (info-mac)
Newsgroups: fa.info-mac
Subject: Control and Status calls?
Message-ID:
Date: Wed, 26-Sep-84 14:28:30 EDT
Article-I.D.: uw-beave.1778
Posted: Wed Sep 26 14:28:30 1984
Date-Received: Thu, 4-Oct-84 03:30:44 EDT
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Organization: U of Washington Computer Science
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From: [email protected]
Could someone out there with the latest Inside Macintosh post a summary
of the Control and Status calls for the serial ports? All I really
need is a way to find out if there is pending input, but a complete
summary would be wonderful.

--david