sane-project-website/old-archive/1999-03/0118.html

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<title>sane-devel: SnapScan 1236 fails 'scanimage -T'</title>
<h1>SnapScan 1236 fails 'scanimage -T'</h1>
<b>Petter Reinholdtsen</b> (<a href="mailto:pere@hungry.com"><i>pere@hungry.com</i></a>)<br>
<i>Fri, 12 Mar 1999 12:30:04 +0100</i>
<p>
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I've tested the snapscan backend directly, and thru net/saned, and<br>
both fails 'scanimage -T'.  Directly, running as root gives this<br>
result:<br>
<p>
  scanimage: scanning image of size 2540x3429 pixels at 24 bits/pixel<br>
  scanimage: acquiring RGB frame, 8 bits/sample<br>
  scanimage: reading one scanline, 7620 bytes...  PASS<br>
  scanimage: reading one byte...          FAIL No data<br>
  scanimage: stepped read, 2 bytes...     FAIL No data<br>
  scanimage: stepped read, 4 bytes...     FAIL No data<br>
  scanimage: stepped read, 8 bytes...     FAIL No data<br>
  scanimage: stepped read, 16 bytes...    FAIL No data<br>
  scanimage: stepped read, 32 bytes...    FAIL No data<br>
  scanimage: stepped read, 64 bytes...    FAIL No data<br>
  scanimage: stepped read, 128 bytes...   FAIL No data<br>
  scanimage: stepped read, 256 bytes...   FAIL No data<br>
  scanimage: stepped read, 512 bytes...   FAIL No data<br>
  scanimage: stepped read, 1024 bytes...  FAIL No data<br>
  scanimage: stepped read, 2048 bytes...  FAIL No data<br>
  scanimage: stepped read, 4096 bytes...  FAIL No data<br>
  scanimage: stepped read, 8192 bytes...  PASS<br>
  scanimage: stepped read, 8191 bytes...  PASS<br>
  scanimage: stepped read, 4095 bytes...  FAIL No data<br>
  scanimage: stepped read, 2047 bytes...  FAIL No data<br>
  scanimage: stepped read, 1023 bytes...  FAIL No data<br>
  scanimage: stepped read, 511 bytes...   FAIL No data<br>
  scanimage: stepped read, 255 bytes...   FAIL No data<br>
  scanimage: stepped read, 127 bytes...   FAIL No data<br>
  scanimage: stepped read, 63 bytes...    FAIL No data<br>
  scanimage: stepped read, 31 bytes...    FAIL No data<br>
  scanimage: stepped read, 15 bytes...    FAIL No data<br>
  scanimage: stepped read, 7 bytes...     FAIL No data<br>
  scanimage: stepped read, 3 bytes...     FAIL No data<br>
<p>
The scanner then seems to lock up.  When running as a normal user thru<br>
the net/saned backend, this result follows:<br>
<p>
  scanimage: scanning image of size 2540x3429 pixels at 24 bits/pixel<br>
  scanimage: acquiring RGB frame, 8 bits/sample<br>
  scanimage: reading one scanline, 7620 bytes...  PASS<br>
  scanimage: reading one byte...          PASS<br>
  scanimage: stepped read, 2 bytes...     PASS<br>
  scanimage: stepped read, 4 bytes...     PASS<br>
  scanimage: stepped read, 8 bytes...     PASS<br>
  scanimage: stepped read, 16 bytes...    PASS<br>
  scanimage: stepped read, 32 bytes...    PASS<br>
  scanimage: stepped read, 64 bytes...    PASS<br>
  scanimage: stepped read, 128 bytes...   PASS<br>
  scanimage: stepped read, 256 bytes...   PASS<br>
  scanimage: stepped read, 512 bytes...   PASS<br>
  scanimage: stepped read, 1024 bytes...  FAIL No data<br>
  scanimage: stepped read, 2048 bytes...  FAIL No data<br>
  scanimage: stepped read, 4096 bytes...  FAIL No data<br>
  scanimage: stepped read, 8192 bytes...  FAIL No data<br>
  scanimage: stepped read, 8191 bytes...  FAIL No data<br>
  scanimage: stepped read, 4095 bytes...  FAIL No data<br>
  scanimage: stepped read, 2047 bytes...  FAIL No data<br>
  scanimage: stepped read, 1023 bytes...  FAIL No data<br>
  scanimage: stepped read, 511 bytes...   FAIL No data<br>
  scanimage: stepped read, 255 bytes...   FAIL No data<br>
  scanimage: stepped read, 127 bytes...   FAIL No data<br>
  scanimage: stepped read, 63 bytes...    FAIL No data<br>
  scanimage: stepped read, 31 bytes...    FAIL No data<br>
  scanimage: stepped read, 15 bytes...    FAIL No data<br>
  scanimage: stepped read, 7 bytes...     FAIL No data<br>
  scanimage: stepped read, 3 bytes...     FAIL No data<br>
<p>
The scanner does not lock up in this case.  Any one know how to fix<br>
this?<br>
<pre>
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##&gt;  Petter Reinholdtsen &lt;##    | <a href="mailto:pere@td.org.uit.no">pere@td.org.uit.no</a>
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