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<title>sane-devel: Re: Not all devices?</title>
<h1>Re: Not all devices?</h1>
<b>Nick Lamb</b> (<a href="mailto:njl98r@ecs.soton.ac.uk"><i>njl98r@ecs.soton.ac.uk</i></a>)<br>
<i>Fri, 21 May 1999 01:01:24 +0100 (GMT)</i>
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On Thu, 20 May 1999, Adam Williams wrote:<br>
<p>
<i>&gt; I have a Linux host where scanimage -L shows the following:</i><br>
<i>&gt; </i><br>
<i>&gt; device `pnm:0' is a Noname PNM file reader virtual device</i><br>
<i>&gt; device `pnm:1' is a Noname PNM file reader virtual device</i><br>
<i>&gt; device `hp:/dev/scanner' is a Hewlett-Packard C2520A flatbed scanner</i><br>
<i>&gt; </i><br>
<i>&gt; And another host that I actually want to use the scanner from where a scanimage</i><br>
<i>&gt; -L shows the following:</i><br>
<i>&gt; </i><br>
<i>&gt; device `net:192.168.3.102:pnm:0' is a Noname PNM file reader virtual device</i><br>
<i>&gt; device `net:192.168.3.102:pnm:1' is a Noname PNM file reader virtual device</i><br>
<i>&gt; </i><br>
<i>&gt; </i><br>
<i>&gt; Why doesn't the HP scanner show up? I've looked all over and can find no good</i><br>
<i>&gt; documentation on how to set this up. I have net in the dll.conf of the</i><br>
<i>&gt; non-scanner host and hp &amp; pnm in the dll.conf of the scanner-attached host.</i><br>
<p>
Assuming 192.168.3.102 is the address of the machine where the HP is<br>
connected, and not just the non-scanner host probing itself...<br>
<p>
Check that "nobody" (which is the user normally set to run saned from inetd)<br>
has permission to access the HP scanner. To check this, become nobody with<br>
"su nobody" as root. Then try to use "scanimage -L" -- if you can't see the<br>
HP scanner as nobody, then saned won't be able to either. Fix your<br>
permissions. If it's not this, get back to us with some more details..<br>
<p>
NB Depending on your setup, having "nobody" able to play with /dev/scanner<br>
may not be what you want. If so, create a new user or group with enough<br>
privs, and arrange in inetd.conf for saned to run as the new user.<br>
<p>
Nick.<br>
<p>
<p>
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<li> <b>Next message:</b> <a href="0213.html">Adam Williams: "Re: Not all devices?"</a>
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