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From: stevec@ingr.UUCP
Newsgroups: net.wanted,net.micro.pc
Subject: help wanted dos file sharing dma
Message-ID: <148@ingr.UUCP>
Date: Fri, 12-Sep-86 10:15:56 EDT
Article-I.D.: ingr.148
Posted: Fri Sep 12 10:15:56 1986
Date-Received: Tue, 23-Sep-86 06:00:52 EDT
Distribution: net
Organization: Intergraph Corp. Huntsville, AL
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Xref: mnetor net.wanted:3907 net.micro.pc:6613


[ this line expressly for the purpose of not promoting tooth decay ]

I need information about the SHARE program supplied with DOS 3.2. I also
need information about the way that DOS handles "network disks". The
driver level calls for opening files for sharing is documented in the 
DOS tech ref book, but I would like to know how and at what level DOS
keeps track of who has what file opened. If anyone knows of a good
reference for this information, please let me know. I also would like to
hear from anyone who has used the DMA set-up on the pc. I understand
how the kluge works, and the problems involved with the page registers,
etc, but I don't know which channels I can safely use for custom hardware.

Please mail responses. If there is enough response, I will summarize and
post.




		Steve Conklin			akgua!ingr!tesla!steve
		Intergraph Corp.		akgua!ingr!stevec
		Huntsville, AL 35807		ihnp4!ingr!...
		M/S DB1402
		(205) 772-6618