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<H1>Re: Invalid argument</H1>
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<STRONG>From:</STRONG> Timothy Little (<A HREF="mailto:tim@lilly-villa.little-possums.net?Subject=Re:%20Invalid%20argument&In-Reply-To=&lt;20000930180523.B5272@freeman.little-possums.net&gt;"><EM>tim@lilly-villa.little-possums.net</EM></A>)<BR>
<STRONG>Date:</STRONG> Sat Sep 30 2000 - 00:05:23 PDT
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On Sat, Sep 30, 2000 at 08:15:34AM +0200, Claus Atzenbeck wrote:
<BR>
<EM>&gt; On Sat, 30 Sep 2000, Nick Lamb wrote:
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; &gt; On Sat, Sep 30, 2000 at 01:59:36AM +0200, Jochen Eisinger wrote:
</EM><BR>
<EM>&gt; &gt; &gt; #scanimage --device epson:/dev/usbcanner0
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; This is not working either (same result):
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; # scanimage --device epson:/dev/usbcanner0
</EM><BR>
<EM>&gt; [epson] Unknown type R or level K, using B3
</EM><BR>
<EM>&gt; scanimage: open of device epson:/dev/usbcanner0 failed: Invalid argument
</EM><BR>
<P>&quot;Invalid argument&quot; is what scanimage says when almost anything goes
<BR>
wrong. It does it if the device file is missing, or already open, or
<BR>
the kernel driver is missing, or the scanner responds with something
<BR>
it shouldn't, or not at all.
<BR>
<P>Strangely enough after all that, it also gives the same message if the
<BR>
argument is, in fact, invalid.
<BR>
<P>In practice, the specific-sounding &quot;Invalid argument&quot; error message
<BR>
actually means 'something went wrong'.
<BR>
<P>- Tim
<BR>
<P><PRE>
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