[net.unix-wizards] Does 4.2 dmf driver work?

parker@nrl-css.ARPA (10/25/84)

From:  Alan Parker <parker@nrl-css.ARPA>

Does the dmf driver distributed with 4.2 work?   I'm trying to bring
up a board that is supposed to emulate a dmf32 and its hard to tell 
if the trouble is with the driver (which we have not used before) or
the new board.   Thanks.

-Alan

leon@mmm.UUCP (10/31/84)

We are useing emulex controllers for both DH and DMF emulations
on the same BSD 4.2 system on a vax 11/780.  There were a few
problems getting the tty device names generated correctly, but
the drivers seem to be working fine.

Leon Schilmoeller
EMRD 3M
St. Paul, MN

root%bostonu.csnet@CSNET-RELAY.ARPA (11/01/84)

From:  God <root%bostonu.csnet@CSNET-RELAY.ARPA>

	It works here at B.U., we use both the dec DMF32 (750,730)
	and an able lookalike, no changes to std driver.

	Be careful with the flag bits, start a version with all
	flag bits on (0xffff in the config file), see if that
	works then re-gen with modem control as getting this
	wrong can make a board appear not to work.

	Also, MAKEDEV may make too many devices, should be harmless.
	(I think it makes them in groups of 16 rather than 8.)
	Obviously be careful about your /etc/ttys file,
	csr addresses etc.

	You don't say if it comes up on auto-config (at boot.)
	If it doesn't then either the board is dead, set up
	wrong [watch for colliding addresses] or your config file
	is wrong (these last two should be easy to eliminate.)

			-Barry Shein

	P.S. Also maybe check that the NPG jumper is out, the
	DD11 slot is alive. You could of course run the DEC
	diags on it, no? At least do an AUTOSIZER (see your
	hardware manual.)

jnelson@trwrba.UUCP (John T. Nelson) (11/01/84)

	Does the dmf driver distributed with 4.2 work?   I'm trying to
	bring up a board that is supposed to emulate a dmf32 and its
	hard to tell if the trouble is with the driver (which we have
	not used before) or the new board.   Thanks.


Yes... the dmf driver in 4.2 works very nicely.  Not a PERFECT
emulation, in fact it doesn't support the printer or DR11-c ports
that I can see.  But the  ttys lines and full modem control work
okay with no mods to the code.


					- John

root@infoswx.UUCP (11/02/84)

If you are adding dmf look alikes to 4.2 be aware of the following
difference between 4.2 and VMS (at least on our system).  The dmf
CSR's need to be 760340 & 760400 for 4.2 but the VMS autosizer
expects them at 760400 & 760440.  This is on a 11/750 I don't know
about 780's.  Other than that the able just plugged right in.

charisse
{allegra,ihnp4}!convex!infoswx!charisse