*BSD News Article 41047


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From: roana@cs.utwente.nl (V.O.F. Roana Technologies)
Newsgroups: comp.os.386bsd.questions
Subject: Why no std BIOS INT 13 HD support for crappy HD's?
Date: 15 Jan 1995 19:06:23 GMT
Organization: University of Twente, Dept. of Computer Science
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Distribution: world
Message-ID: <3fbrnf$7bd@utrhcs.cs.utwente.nl>
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Folks,

  Please correct me if I'm wrong, but isn't it possible to write
a generic Hard disk driver that uses interrupt 13 from the PC BIOS?
Of course this will give lousy performance, but it seems to me that
a lot of questions posted in this group would be over when such
a driver existed, for users of non-standard SCSI adapters, for example.
  Why not access them the same way Messy-DOS does? Excuse me for not
taking an in-depth look at the kernel sources, but do these BIOS
functions offer too little functions? or is usage of these interrupts
impossible/unwanted in the kernel sources?

--

ROANA Technologies VOF				roana@cs.utwente.nl
P.O. Box 1214					phone: +31 53 894484
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