Re: [RFC] New Driver Model for 2.5

Jonathan Lundell (jlundell@pobox.com)
Thu, 25 Oct 2001 08:44:09 -0700

At 5:22 PM +0200 10/25/01, Rob Turk wrote:
> > I'm failing to imagine a good case for suspending a system that has a
>> tape drive on it.
>>
>
>Well, maybe the tape example wasn't all that good. The state information
>(wide/sync negotiation) still needs to be retained for all SCSI
>devices though.

Any driver that uses SCSI bus reset for last-resort error recovery
(and I think it's pretty typical) needs to be able to renegotiate the
connection. Maybe even after a SCSI device reset; I don't recall. So
initiating that negotiation as part of (or after) resume doesn't seem
all that burdensome.

You need that anyway for "deep sleep" that powers down devices completely.

-- 
/Jonathan Lundell.
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