[Coco] SCSISYS question

Bob Devries devries.bob at gmail.com
Fri Jun 23 22:59:26 EDT 2006



>From the SCSISYS manual:

IT.STP
Bits 7-2 = partition
bits 1-0 MPI slot
IT.TYP
bit 7 = hard disk
bit 6 = fudge LSN0
bits 3-5 = cluster size
bit 2 = 6309 flag
Bit 0-1 = sector size
IT.DNS
bit 7 = 512 flag
bit 5-6 = LUN
bit 4 = error type
bit 3 = no cache
bit 2 = no turbo
bit 0-1 = SCSI ID

So, my H1 descriptor is SCSI ID 1 and hence IT.DNS=$81

--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message -----
From: "Robert Gault" <robert.gault at worldnet.att.net>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Saturday, June 24, 2006 12:42 PM
Subject: Re: [Coco] SCSISYS question



> Bob Devries wrote:

>

>><snip>

>> dmode /h0 gives:

>> drv=00 stp=00 typ=84 dns=80 cyl=0385 sid=05

>> vfy=00 sct=0035 tos=0035 ilv=05 sas=08

>>

>> dmode /h1 gives:

>> drv=01 stp=00 typ=84 dns=81 cyl=0385 sid=05

>> vfy=00 sct=0035 tos=0035 ilv=05 sas=08

>>

> ><snip>

>

> Bob I don't have scsisys so I'm not sure about any driver specific

> entries in the descriptor. Using the current NitrOS-9 defs I'm wondering

> why h1 has dns=81. What does bit0 in dns do for a hard drive? What

> happens if you make it dns=80 as for h0?

>

> --

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