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<!-- name="David Mosberger-Tang" -->
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<title>sane-devel: Re: Using NET backend</title>
<h1>Re: Using NET backend</h1>
<b>David Mosberger-Tang</b> (<a href="mailto:David.Mosberger@acm.org"><i>David.Mosberger@acm.org</i></a>)<br>
<i>Thu, 14 May 1998 22:58:55 -0700</i>
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<i>&gt;&gt;&gt;&gt;&gt; On Thu, 14 May 1998 09:00:16 -0700, Jeff Freedman &lt;<a href="mailto:jsf@hevanet.com">jsf@hevanet.com</a>&gt; said:</i><br>
<p>
Jeff&gt; I'm trying out the "net" backend of the .72 release with a<br>
Jeff&gt; Microtek E3, Adaptec 2940, and Redhat Linux 5.0. It starts to<br>
Jeff&gt; work (in the "Preview" dialog of xscanimage); but after what<br>
Jeff&gt; seems like one pass, xscanimage freezes up. From then on, the<br>
Jeff&gt; scanner is unusable until I reboot. If I try "scanimage -L",<br>
Jeff&gt; scanimage just hangs until I kill it.<br>
<p>
Jeff&gt; Scanimage works fine if I use the Microtek backend directly.<br>
<p>
I just (re-)tested it with the Mustek backend and all is fine here.<br>
When writing the Mustek backend, I found that scanning through saned<br>
uncovered some bugs in the Mustek that did not show up in testing with<br>
scanimage or xscanimage. As a result, I'd highly recommend testing a<br>
backend through saned as it will increase the likelihood that the<br>
backend does indeed work according to the SANE API spec.<br>
<p>
I'm not saying this is necessarily a bug in the Microtek backend, but<br>
just because it works with scanimage doesn't prove that it's a bug in<br>
the net backend or in saned either. Maybe you can try to use<br>
SANE_DEBUG_NET=128 on the client side and/or "saned -d 128" on the<br>
server side to try to track the problem down?<br>
<p>
--david<br>
<p>
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