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From: dyon@batcomputer.TN.CORNELL.EDU (Dyon Anniballi)
Newsgroups: net.micro.amiga
Subject: Re: RKM and serial reads
Message-ID: <757@batcomputer.TN.CORNELL.EDU>
Date: Mon, 28-Jul-86 15:16:03 EDT
Article-I.D.: batcompu.757
Posted: Mon Jul 28 15:16:03 1986
Date-Received: Tue, 29-Jul-86 07:39:15 EDT
References: <15028@ucbvax.BERKELEY.EDU>
Reply-To: dyon@batcomputer.UUCP (Dyon Anniballi)
Organization: Theory Center, Cornell University, Ithaca NY
Lines: 10

If you look in part 2 of the RKM(the one with all the appendices) in the
section that describes all the devices, and find the part on the serial
you will find a SCMD_QUERY command.  It works just like the SCMD_READ
and SCMD_WRITE, and returns the number of unread chars in the buffer in one
of the fields(I don't remember which one).  Hope this helps.

p.s. It might not be SCMD, but it is some similar combination of letters.
I don't have the RKM in front of me right now.

-jr