Re: TP755, Dock I, Linux and SCSI CDROM problem...

[jfid@mfltd.co.uk (James Fidell)]

Brad Pepers wrote:

> > Brad Pepers wrote:
> > 
> > > > I'm trying to get Linux to recognise a SCSI CD-ROM drive attached to the
> > > > docking station on my 755.  The kernel (1.2.4) recognises the TMC-8xx
> > > > card without any problems now I've stopped the memory clash with the
> > > > ethernet card, but when the driver initialises, it finds the CD-ROM
> > > > drive at every SCSI address apart from the one it's at.
> > > > 
> > > > Any suggestions as to the reason for this, or how to fix it ?
> > > 
> > > The problem is that some SCSI devices respond on all LUNs when they
> > > should only respond on one.  Some other devices also lock up when
> > > they are polled on anything but LUN 0.  Linux has a list of these
> > > bad devices in drivers/scsi/scsi.c.  The list is called blacklist[].
> > > All you need to do is write down the identifying info that Linux
> > > is showing on the screen for the device (should be three strings
> > > with the manafacturer, model, and revision).  Then add that to the
> > > blacklist[] in scsi.c and recompile your kernel.  You should send
> > > the info to someone on the linux scsi development team (perhaps
> > > Eric Youngdale - ericy@cais.com) so that it gets included in future
> > > Linux releases.
> > 
> > That's not what I'm seeing, though -- I get messages saying that the
> > CDROM driver is found at scsi0, id X, LUN 0, where X is 0 thru' 7
> > excluding 6, which is the actual SCSI id of the CD-ROM drive.
> 
> Ah - stranger yet!  I've never heard of this before.  You say the
> SCSI is a TMC controller?  Not using the builtin SCSI?  Which dock
> station (I or II)?  Are you sure termination is correct?

I believe that the controller is a TMC-850.  OS/2 Warp told me that when I
installed it, I'm sure.  It is the built-in SCSI host in the Dock I.
I'm as sure as I can be that the termination is correct.

> > I can't help thinking about the floppy disk change sense line and it's
> > inverted logic and wondering if there is something similar with the
> > SCSI host adaptor.
> 
> I doubt it.  Tons of people use CD-ROMs and SCSI HDs and don't have
> problems like you mention.  If you bought the TMC scsi controller
> seperate, maybe there is something in the manual about this.  Does
> it work in DOS?

It works under DOS, Windows and OS/2 without any problems.

James.

-- 
 "Yield to temptation --             |     jfid@mfltd.co.uk
  it may not pass your way again"    |  http://www.mfltd.co.uk/~jfid/
                                     |
        - Lazarus Long               |              James Fidell