SCSI serial port flags?

[Stelios Sartzetakis]

SUN2-3.4, SCSI serial ports connected to dial-in modems.
configured with :
	device zs2 at mbmem 1 csr 0x80800  flags 3 priority 3
PROBLEM : uucico hangs on ports ttys{1,2}.  
	  (ports not configured for modem control)

Note: 1. apparently login sessions on these ports do not hang.
      2. we use port ttys3 with a bisync driver with no problems 
	(zs3: flags 1)

Could anyone please tell me what is the correct value to use in flags ?
Where is that documented?

Thanks,

Stelios Sartzetakis             Office: +30 81 221171, 229302,229368,229346
                                Fax   : +30 81 229342...........(Preferred) 
Systems Analyst                 Telex : 262389 CCI GR...(if all else fails)
Foundation of Res.&Tech Hellas	UUCP  : {mcvax,inria,unido}!ariadne!stelios
Institute of Computer Science   P.O.Box 1385, Heraklio, Crete Greece 711 10