*BSD News Article 94886


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Newsgroups: comp.unix.bsd.freebsd.misc
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From: uhclem@nemesis.lonestar.org (Frank Durda IV)
Subject: Re: Panasonic interface CD-ROM problem: matcdc0 not found at 0x230
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Organization: The Big Blue Box
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References: <Pine.SUN.3.95-heb-2.07.970427222459.12723A-100000@actcom.co.il>
Date: Thu, 1 May 1997 03:04:41 GMT
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Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:40085


Alexander Indenbaum (baum@actcom.co.il) wrote:
: I have Panasonic interface CD-ROM manufactured by Reveal
: at 0x230 which connected to Creative SB.

Standard check list:

1.	Make sure you have a CR-562 or CR-563 - only models supported
	by that driver.  If the drive uses a caddy, you are out of luck.

2.	Make sure drive itself is strapped for Drive 0 (some are shipped
	with no strap at all, are strapped to Drive 1 instead of Drive 0).
	The first drive on any controller must be Drive 0 for use on FreeBSD.

3.	Read the man page  (man 4 matcd).

4.	Some versions of SoundBlaster DOS and Windows drivers *LIE* and
	report the CD-ROM drive interface address as 0x10 below where it
	really is.  So if SoundBlaster drivers say it is at 0x220, it may
	really be at 0x230.

5.	If it still won't detect, set I/O port to -1 and see if 
	the driver can find the drive via brute force.  -1 causes it
	to check several known places different vendors put the drive.

6.	Turn on driver debugging and send me the logs.


Frank Durda IV <uhclem@nemesis.lonestar.org>|"The Knights who say "LETNi"
or uhclem%nemesis@rwsystr.nkn.net           | demand...  A SEGMENT REGISTER!!!"
					    |"A what?"
or ...letni!rwsys!nemesis!uhclem	    |"LETNi! LETNi! LETNi!"  - 1983