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<title>sane-devel: Re: Apple OneScanner/Color OneScanner status?</title>
<h1>Re: Apple OneScanner/Color OneScanner status?</h1>
<b>Milon Firikis</b> (<a href="mailto:milonf@ariadne-t.gr"><i>milonf@ariadne-t.gr</i></a>)<br>
<i>Mon, 07 Sep 1998 13:14:16 +0300</i>
<p>
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Ian R. Justman wrote:<br>
<p>
[snip]<br>
<i>&gt; </i><br>
<i>&gt; </i><br>
<i>&gt; Here's the patch I came up with:</i><br>
<i>&gt; </i><br>
<i>&gt; --- apple.c.orig Wed Sep 2 00:35:21 1998</i><br>
<i>&gt; +++ apple.c Tue Sep 1 20:44:59 1998</i><br>
<i>&gt; @@ -2501,7 +2501,7 @@</i><br>
<i>&gt; </i><br>
<i>&gt; if (data_length)</i><br>
<i>&gt; {</i><br>
<i>&gt; - if (result[3] &amp; 1) /* Scanner Blocked: Retrieve data */</i><br>
<i>&gt; + if ((result[3] &amp; 1) || data_av) /* Scanner Blocked: Retrieve data */</i><br>
<i>&gt; {</i><br>
<i>&gt; DBG (IO_MESSAGE,</i><br>
<i>&gt; "sane_read: (status) Available in scanner buffer %u.\n",</i><br>
<i>&gt; </i><br>
<i>&gt; At the end of the scan, the block flag has been dropped, yet there might</i><br>
<i>&gt; be data in the scanner buffer. If the check for the block flag fails, it</i><br>
<i>&gt; immediately checks to see if there is any remaining data. If so, the</i><br>
<i>&gt; backend will empty the buffer for the last time.</i><br>
<i>&gt; </i><br>
<p>
Wait a minute. I have some questions.<br>
<p>
1) What scanner do you have? (OneScanner or ColorOneScanner, both?)<br>
<p>
2) How big is the internal buffer? (AppleScanner has 256 bytes)<br>
<p>
3) Before your patch: Does the backend was actually scanning? Did it<br>
open the lamp?<br>
<p>
4) After you patch: Does everything works as expected? In all modes?<br>
<p>
5) If (4==TRUE) what about the round offs in scan area that are imposed<br>
by the specific model you have. Note that in case of an unexpected round<br>
offs the SANE may wait bigger/smaller image and that may lead to<br>
undesired warnings and cropped images.<br>
<p>
Your patch looks that fixes a situation at the end of a scan. Although<br>
this is fine with me, the problems I had so far (other users actually<br>
had them) was that the scanner wasn't starting the scan at all.<br>
<p>
[snip]<br>
<p>
<i>&gt; </i><br>
<i>&gt; Cool. Any way I could get a copy of the most recent copy of the sources</i><br>
<i>&gt; to the Apple backend? I would lilke to see what's happening with it thus</i><br>
<i>&gt; far.</i><br>
<i>&gt; </i><br>
<p>
Nop there is no way to get newer sources than the ones that they are<br>
coming with the sane-0.74. I haven't code anything since then and I<br>
don't know anybody who did.<br>
<p>
Milon Firikis<br>
<p>
<pre>
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</pre>
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<p>
<ul>
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<li> <b>Next message:</b> <a href="0056.html">Milon Firikis: "Re: Re :- PIE (SCANACE) won't release technical info"</a>
<li> <b>Previous message:</b> <a href="0054.html">Bernd Schroeder: "Re: ADF for microtek2 backend"</a>
<li> <b>Maybe in reply to:</b> <a href="0023.html">Ian R. Justman: "Apple OneScanner/Color OneScanner status?"</a>
<!-- nextthread="start" -->
<li> <b>Next in thread:</b> <a href="0061.html">Milon Firikis: "Re: Apple OneScanner/Color OneScanner status?"</a>
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