From:	nunnayod AT mbiz DOT nez (CaffineLady)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: direct hard drive controll?
Date:	Fri, 07 Jul 2000 21:03:30 GMT
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References:	<smbdmlcsnu98 AT corp DOT supernews DOT com> <200007071558 DOT VAA00953 AT midpec DOT com>
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To:	djgpp AT delorie DOT com
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In article <200007071558 DOT VAA00953 AT midpec DOT com>, tr AT eth DOT net says...
>
>> Hi, Im kind of new to djgpp in general so forgive my ignorance, but I 
>> was wandering if there was a way to directly access the hard drives to 
>> make the actuator move to a specific track.. It'd also be nice to find 
>> out how many tracks are on a given hard drive and how many hard drives 
>> there are. 
>> I'm hopeing to 
>> build an amateur laser light show :)
>
>You could do that using the BIOS calls, or access the IDE controller
>directly (which is not a wise thing to do if you aren't familiar with
>it). Check out the interrupt 13h in the Ralf Brown's interrupt list.
>

 I've been looking through it and I havn't found anything about moving the
head to a specific track... maybe Im just missing it. Im not to worried about 
damaging the hard drives, seeing as how they are torn all to peices 
anyways... could directly accessing the IDE controller hurt the computer?
If someone could give me a snippet of code to send the head to track 'n'
I'd greatly appreciate it. 

 I don't want to read any data (infact the platter will probably be removed),
and I need the operation to be fast because I need to switch between tracks
really really fast (to move the mirror Im gonna glue to it back and forth). 


kvcurtis AT iland DOT net

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