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<TITLE>sane-devel: Re: Problems with HP Scanjet 4c</TITLE>
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<H1>Re: Problems with HP Scanjet 4c</H1>
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<STRONG>From:</STRONG> abel deuring (<A HREF="mailto:adeuring@gmx.net?Subject=Re:%20Problems%20with%20HP%20Scanjet%204c&In-Reply-To=&lt;3AA4FD1E.3CED30A0@gmx.net&gt;"><EM>adeuring@gmx.net</EM></A>)<BR>
<STRONG>Date:</STRONG> Tue Mar 06 2001 - 07:07:10 PST
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Jody Williams wrote:
<BR>
<EM>&gt;
</EM><BR>
<EM>&gt; I am having problems using my HP ScanJet 4c. When I try to scan, I
</EM><BR>
<EM>&gt; receive the message &quot;Error during divice I/O&quot;.
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; What are some possible solutions? I have tried recompiling the kernel
</EM><BR>
<EM>&gt; (2.4.1) with different SCSI options.
</EM><BR>
<EM>&gt;
</EM><BR>
<P>Jody,
<BR>
<P>This might be related to a too short timeout in the part of Sane's SCSI
<BR>
library for the new Linux SG driver in the 2.4 kernel.
<BR>
<P>Please try to change the following line in sanei/sanei_scsi.c
<BR>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;req-&gt;sgdata.sg3.hdr.timeout = 10000;
<BR>
<P>(line 1892 in Sane 1.0.4) to:
<BR>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;req-&gt;sgdata.sg3.hdr.timeout = 1000 * 10 * 60;
<BR>
<P>Abel
<BR>
<P><PRE>
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