P1394> connection for Function or Service

[Hitoshi Sekine]

Fumio,

I think it should work on any OS so.  Please send the kind of printer to me.

Thanks,
Hitoshi

-----Original Message-----
From: Nagasaka Fumio [mailto:Nagasaka.Fumio at exc.epson.co.jp]
Sent: Friday, October 16, 1998 7:20 PM
To: Hitoshi Sekine
Cc: p1394 at pwg.org; 'Greg Shue'
Subject: RE: P1394> connection for Function or Service


Hi Hitoshi,

My question is;
If 1394 PWG chooses $B!H(Jconnections over multiple LUNs$B!I(J, does new PC OS
support device-enumeration which has a configuration ROM shown below?

UnitDir --->[ LUN0, LUN1, LUN2, $B!D(J]

And may our driver invoke $B!H(JLogin(s)$B!I(J to each LUN separately?

Thank you,
--------------------------------------------
Fumio Nagasaka
Epson Software Development Laboratory Inc.
Tel +81 268 25 4111,  Fax +81 268 25 4627
E-mail to nagasaka.fumio at exc.epson.co.jp

> -----Original Message-----
> From:	Hitoshi Sekine [SMTP:hitoshis at MICROSOFT.com]
> Sent:	Saturday, October 17, 1998 3:56 AM
> To:	'Greg Shue'; Nagasaka Fumio
> Cc:	p1394 at pwg.org
> Subject:	RE: P1394> connection for Function or Service
> 
> > A larger issue with "current PC OS" implementation may be how
> > many outstanding requests can be supported at once by the SBP-2
> > driver.
> 
> I agree that it is a large issue with the implementation.  But, it is not
> clear to me that the SBP-2 is required to handle multiple logins or
> connections.  Who cases multiple connections per a single login?  I think
> we
> should be able to handle multiple connection on a single login or multiple
> logins.  These implementations are very different.
> 
> Thanks,
> Hitoshi
> 
> -----Original Message-----
> From: Greg Shue [mailto:gregs at sdd.hp.com]
> Sent: Friday, October 16, 1998 8:40 AM
> To: Nagasaka.Fumio at exc.epson.co.jp
> Cc: p1394 at pwg.org
> Subject: Re: P1394> connection for Function or Service
> 
> 
> > However, each service requires a multiplexed connection and
> > each connection requires flow control and send/receive queues.
> 
> Whether we multiplex connections over a login or have separate
> logins, each service is accessed over a connection, and each
> connection requires flow control and send/receive queues.
> This is a non-issue in the decision.
> 
> A larger issue with "current PC OS" implementation may be how
> many outstanding requests can be supported at once by the SBP-2
> driver.
> 
> -- 
> Greg Shue
> Hewlett-Packard Company
> All-in-One Division			        gregs at sdd.hp.com
> ----------------------------------------------------------------