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Date: Tue, 26 Dec 95 16:25 MET
From: wcp@verza.lpds.sublink.org (Walter C. Pelissero)
To: freebsd-questions@freebsd.org
Received: from wcp by verza.lpds.sublink.org; Tue, 26 Dec 95 16:25 MET
Subject: Hostess comm adapter
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I recently bought a Hostess compatible comm adapter and I would like
to test it under FreeBSD 2.0 (I still have to upgrade, sorry).
I tried this in my kernel configuration file:

options		"COM_MULTIPORT"
device		sio4	at isa? port 0x280 tty flags 0x405
device		sio5	at isa? port 0x288 tty flags 0x405
device		sio6	at isa? port 0x290 tty flags 0x405
device		sio7	at isa? port 0x298 tty flags 0x405 irq 9 vector siointr

but when I try to receive something from a modem attached to sio4 I
get errors like this:

Dec 25 19:14:39 radikkio kernel: sio4: 1 more silo overflow (total 1)

I have to say that the board is not detected correctly:

Dec 25 19:07:11 radikkio kernel: sio4 at 0x280-0x287 flags 0x405 on isa
Dec 25 19:07:11 radikkio kernel: sio4: type 16450 (multiport master)
Dec 25 19:07:11 radikkio kernel: sio5 at 0x288-0x28f flags 0x405 on isa
Dec 25 19:07:11 radikkio kernel: sio5: type 16450 (multiport)
Dec 25 19:07:11 radikkio kernel: sio6 at 0x290-0x297 flags 0x405 on isa
Dec 25 19:07:11 radikkio kernel: sio6: type 16450 (multiport)
Dec 25 19:07:11 radikkio kernel: sio7 at 0x298-0x29f irq 9 flags 0x405 on isa
Dec 25 19:07:12 radikkio kernel: sio7: type 16450 (multiport)

because the booklet coming with the board says it should emulate 8250s
(not 16450).

It seems a problem with interrupts since sending characters works
fine.

Does this board is supported by FreeBSD?
If yes, what should I do?