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Accessing SCSI devices (TAPE) under Windows95

Posted on 1998-03-06
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Last Modified: 2013-12-03
Can anyone point me in the right direction to get me started?

I need access to a tape device connected to my PC via an NCR SCSI adapter. I can find the calls for NT to do tape accesses but not for Win95.

Can anyone get me started here ?

reragds - Mike Wright
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Question by:mwright012397
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jhance earned 100 total points
ID: 1411772
NT supports SCSI devices by default through an API but Win95 does not.  Go to the Adaptec web site (www.adaptec.com) and get the docs on the ASPI SDK programming library for Windows95.
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by:mwright012397
ID: 1411773
My controller is NCR/Symbios not adaptec. Do your comments still apply ?

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by:jhance
ID: 1411774
Yes, if you want to program it under Win95 you have two options:

1) Write your own hardware devices driver for the card and if you want to run any off the shelf apps for it, you will need to make it ASPI compliant.

2) The card's manufacturer should have included an ASPI driver with the card.  You can access the card through the ASPI API to control whatever you need to on the SCSI bus.
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by:mwright012397
ID: 1411775
Thanks - I have got going now

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by:nockert
ID: 1411776
Another (easier?) solution is to use GetASPI32SupportInfo() and SendASPI32Command() which is available under win95. These are documented in at least the Visual Studio 97 documentation. I think the only way to access them is through run-time explicit linking with wnaspi32.dll (by using LoadLibrary() and then GetProcAddress()).

Once you read the documentation you will get the hang of it pretty soon, though you will undoubtedly have to search a while to find everything (a word-search for aspi will get you started). Don't really know under what heading I found it, but I am sure there also existed a document describing what commands an aspi-compliant device should respond to. Although, you might have to find some scsi-command-docs for the specific device anyway.





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