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From: Douglas Gilbert <dougg@torque.net>
To: linux-kernel@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Subject: Re: SCSI scanner problem with all kernels since 2.3.42
Date: Tue, 09 Jan 2001 15:53:02 -0500	[thread overview]
Message-ID: <3A5B7A2E.E3F964A8@torque.net> (raw)

Tim Waugh wrote:
> I'm having problems with using xsane to acquire a preview from an HP
> ScanJet 5P connected to an AHA-2940.  2.3.42 is the last kernel that
> works right for me.
> 
> The symptom is that the scanner starts to make scanning sounds, then
> stops, and xsane says 'Error during read: Error during device I/O'.

Tim and I have been looking at this offline. The significance
of lk 2.3.43 was the addition of a new sg driver that has an
additional interface. Recent versions of SANE use that newer
sg interface. The problem that Tim reported seemed to be caused
by timeouts ** resulting in scsi bus resets. Anyway the problem
seems to disappear with the recently released SANE 1.0.4 .
[The original report was based on SANE 1.0.3 and earlier.]

There is also a problem report with the  SnapScan 1236 <--> aha152x 
combination also based on SANE 1.0.3 . This one is looking 
like an "uninitialized errno" bug fixed in SANE 1.0.4 .

** SANE's newer sg interface shortens the per command timeout
from 10 minutes to 10 seconds. Most other OSes interfaces in
SANE have a timeout value of 1 minute or more. I suspect 10 
seconds may be too short.

Doug Gilbert
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             reply	other threads:[~2001-01-09 20:56 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-01-09 20:53 Douglas Gilbert [this message]
2001-01-10  1:44 ` SCSI scanner problem with all kernels since 2.3.42 Tim Waugh
2001-01-15 21:24 ` Juergen E Fischer
  -- strict thread matches above, loose matches on Subject: below --
2001-01-07  0:02 Tim Waugh

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