Subject: Re: problems probing a DEC RZ55 disk
To: David Brownlee <>
From: Jon Buller <>
List: current-users
Date: 08/25/1996 23:20:17
David Brownlee <> writes:
> 	Have you tried disabing sync on the esp?
> 	(Its done by the 'flags' option in the config file)

I hadn't checked, or known about that, however this is what my
config file has in it, and if I read the comments correctly (and
the comments are correct), I think I did disable sync.

# Note the flags on the esp entries below, that work around
# deficiencies in the current driver:
#       bits 0-7:  disable disconnect/reselect for the corresponding target
#       bits 8-15: disable synch negotiation for target [bit-8]
#       Note: targets 4-7 have disconnect/reselect enabled on the premise
#             that tape devices normally have one of these targets. Tape
#             devices should be allowed to disconnect for the SCSI bus
#             to operate acceptably.
# sun4c or sun4m SCSI - an NCR53c94 or equivalent behind
# specialized DMA glue
dma0    at sbus0 slot ? offset ?                        # on-board SCSI
esp0    at sbus0 slot ? offset ? flags 0xff0f           # sun4c

Do I need to change something here, is this the wrong part of the
config file, or is it something else?

Jon Buller