Dennis Putnam <[EMAIL PROTECTED]> writes:
> -----BEGIN PGP SIGNED MESSAGE-----
>
> I apologize if this is a double posting but my previous post never
> received a reply so I am assuming that it was not distributed. The
I'm sorry, there are about 800 unread mesages on the linux-tape
mailing list ...
> >Feb 5 15:19:07 ms265722 kernel: [010] bpck-fdc.c
> (bpck_fdc_query_proto) - Got 0x00, expected either 0xc0 or 0x40.
>
> I have been trying different sources to find out exactly what my
> Conner CTT800E was and why it doesn't work with 'ftape'. One of the
This is a known problem. The Conner/Seagate tape drives use an
proprietary interface made by Microsolutions, Inc.. Although the
Iomega parport floppy tape drives use the same interface and _ARE_
supported and work with ftape, it seems that the Seagate/Conner tape
drives work slightly different.
> >I head up the device driver team at Seagate. This drive is a TR-1
> drive
> >attached to the parallel port (PPT). The drive conforms to QIC-80
> (recording
> >format) and QIC-117 (command set). The caveat is there is no
> "standard" for
> >communicating through the PPT to a tape drive. There are 5 different
> PPT
> >ASICs used by tape drive manufacturers. This particular drive uses a
> >MicroSolutions ASIC. So it works like this: send proprietary commands
> >through the parallel port to the ASIC, which controls the FDC, which
> >accesses the tape drive. If I remember correctly, ftape supports 2
> ASICs
> >already (Colorado Trakker and Shuttle). The specifications for ASICs
> are
> >sometimes closely guarded, but you might want to contact
> MicroSolutions to
> >request specs / source code. One word of caution: supporting a FDC
> type PPT
> >tape drive is probably the most complex to deal with of any storage
> device
> >configuration.
> >
> >Paul Boehler
Hey, you received a more detailed response than usual!!! You are
lucky!!!
Ok, there is another request for help pending on the linux-tape
mailing list.
When I hacked the support for Iomega's Ditto Easy 3200 -- a parport
floppy tape drive using Micro Solutions BackPack protocol -- I used
dosemu-0.66 (or so). There were severe problem due to the bad timer
emulation of DOSEmu. However, today I tried again with
dosemu-0.98.... and found that there were no longer any "division by
zero" error. However, the "-T" debug switch of DOSEmu has changed and
produces too much noise now. I'll hack dosemu and provide you with a
patch so that you'll be able to produce an IO trace log, using a DOS
tape driver which supports your tape drive. The trace log will be
large (about 20M or so), but I have some awk scripts which will do
most of the work.
I'll come back to you when the patch is ready, hopefully tonight.
Cheers
Claus
--
Claus-Justus Heine
[EMAIL PROTECTED]
http://www.math1.rwth-aachen.de/~heine/
Ftape - the Linux Floppy Tape Project
Home Page : http://www.math1.rwth-aachen.de/~heine/ftape/
CVS Repos. : http://iris3.math1.rwth-aachen.de:8000/cvsweb/
Bug Reports : http://iris3.math1.rwth-aachen.de:8080/gnats/
[EMAIL PROTECTED]
Mailing-list: [EMAIL PROTECTED]
