sane-project-website/old-archive/1998-08/0116.html

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<!-- name="Jon Wikne" -->
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<!-- subject="Re: Mustek 600 II N updates + file ownerships" -->
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<title>sane-devel: Re: Mustek 600 II N updates + file ownerships</title>
<h1>Re: Mustek 600 II N updates + file ownerships</h1>
<b>Jon Wikne</b> (<a href="mailto:wikne@lynx.uio.no"><i>wikne@lynx.uio.no</i></a>)<br>
<i>Tue, 25 Aug 1998 17:05:23 +0200 (MET DST)</i>
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Hi Andreas,<br>
<p>
On Tue, 25 Aug 1998 Andreas Czechanowski (<a href="mailto:m075@ins.uni-stuttgart.de">m075@ins.uni-stuttgart.de</a>) wrote:<br>
<p>
<i>&gt; With my firmware (labelled "2.00" but surely older than the "1.xx"</i><br>
<i>&gt; that most other people have), the color correction works fine</i><br>
<i>&gt; (with line-distance-fix enabled). Possibly, another subdivision</i><br>
<i>&gt; and case handling will be necessary here :-(. So Please, if</i><br>
<i>&gt; anyone with a 600 II N reads this:</i><br>
<i>&gt;</i><br>
<i>&gt; --&gt; Can anybody with a 600 II N with Firmware version 1.xx &lt;--</i><br>
<i>&gt; --&gt; send me a binary image of the EPROM in the scanner ? &lt;--</i><br>
<i>&gt; --&gt; So I could try both versions in my scanner. Thanks ! &lt;--</i><br>
<p>
I have taken the EPROM out of my scanner (risking the warranty ;-)<br>
and grabbed version 1.01. I will send it to you directly as an<br>
attachment to a separate mail. (Posting it here hogs bandwidth<br>
quite unnecessarily, and would probably be in violation of someone's<br>
copyright anyway! :-)<br>
<p>
<i>&gt; &gt; Another thing: When using xscanimage with suid root to get access</i><br>
<i>&gt; &gt; to the port, it seems that file ownership for the output files created</i><br>
<i>&gt; &gt; also defaults to root. This is sometimes annoying, although not serious.</i><br>
<i>&gt;</i><br>
<i>&gt; Is it still the case with 0.74 ?</i><br>
<p>
Yes.<br>
<p>
<i>&gt; may be I have missed to set the mode 4755 before doing this...</i><br>
<p>
What I did notice is that the _gid_ was set to the one of the user<br>
invoking the process. The _uid_, on the other hand, was still root.<br>
I'm not sure what might have gone worng.<br>
<p>
<i>&gt; - or are the ioperm()'s that were set before still valid ?</i><br>
<p>
I don't know the details of these calls, and "man ioperm" gives no<br>
clue. Trying is probably the easiest way to find out....<br>
<p>
<p>
Cheers,<br>
-- Jon<br>
<p>
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