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<TITLE>sane-devel: Problems with XSane and Mustek backend</TITLE>
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<META NAME="Author" CONTENT="Henning Meier-Geinitz (hmg-ml@gmx.de)">
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<META NAME="Subject" CONTENT="Problems with XSane and Mustek backend">
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<H1>Problems with XSane and Mustek backend</H1>
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<!-- received="Mon Jan 17 15:38:31 2000" -->
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<!-- sent="Tue, 18 Jan 2000 00:40:42 +0100" -->
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<!-- name="Henning Meier-Geinitz" -->
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<!-- subject="Problems with XSane and Mustek backend" -->
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<!-- id="20000118004042.A305@hmg1.vortex.robin.de" -->
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<STRONG>From:</STRONG> Henning Meier-Geinitz (<A HREF="mailto:hmg-ml@gmx.de?Subject=Re:%20Problems%20with%20XSane%20and%20Mustek%20backend&In-Reply-To=<20000118004042.A305@hmg1.vortex.robin.de>"><EM>hmg-ml@gmx.de</EM></A>)<BR>
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<STRONG>Date:</STRONG> Mon Jan 17 2000 - 15:40:42 PST
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<P>
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<LI><STRONG>Next message:</STRONG> <A HREF="0128.html">Petter Reinholdtsen: "Re: Test"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0126.html">Bill Wohler: "Re: Dark scans (HP Photosmart)"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0159.html">Henning Meier-Geinitz: "Re: Problems with XSane and Mustek backend"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0159.html">Henning Meier-Geinitz: "Re: Problems with XSane and Mustek backend"</A>
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<P>
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Hello!
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<BR>
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<P>I am using the following configuration:
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<BR>
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<P>SANE 1.0.1
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<BR>
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XSane 0.51
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<BR>
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GTK 1.2.1
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<BR>
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(everything compiled with gcc 2.7.2.3)
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<BR>
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glibc-2.0.7pre6
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<BR>
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Linux 2.2.14pre18 (also tested with 2.2.10)
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<BR>
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Mustek Paragon 600 II N (scanner with its own quasi parallel port io card,
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<BR>
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it is supported by sane)
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<BR>
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<P>I have the following problems:
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<BR>
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<P>1)
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<BR>
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<P>Everytime I want to scan something the frontend hangs just before the end of
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<BR>
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the scan. The scanner lamp goes back to the start of the scan (and is turned
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<BR>
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off after some minutes). The frontend thinks the scan isn't over yet, e.g.
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<BR>
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xsane shows its progressbar at nearly 100% and every widget but the "cancel"
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<BR>
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button is gray. I tried to change color/gray, resolution and scan window; it
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<BR>
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doesn't help. If I push the "Cancel" button nothing happens (the sane_cancel
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<BR>
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function *is* called, however). CPU usage is 100%. The problem exists with
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<BR>
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both xsane and xscanimage but not with scanimage. Here is a debug log:
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<BR>
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<P>hmg@hmg1:~ > xsane
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<BR>
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[sanei_init_debug]: Setting debug level of mustek to 255.
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<BR>
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[mustek] attach: opening 0x32b as scsi device
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<BR>
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[mustek] dev_open: Invalid argument: can't open 0x32b as a SCSI device
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<BR>
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[mustek] attach: sending INQUIRY
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<BR>
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[mustek] attach: firmware revision 1.01
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<BR>
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[mustek] attach: cover open
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<BR>
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[mustek] attach: found Mustek scanner model MFC-06000CZ (flatbed scanner), 1-pass
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<BR>
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[mustek] dev_open: Invalid argument: can't open 0x32b as a SCSI device
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<BR>
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[mustek] do_inquiry: sending INQUIRY
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<BR>
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[mustek] line_distance: got factor=65535, (r/g/b)=(0/0/0)
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<BR>
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[mustek] get_image_status: bytes_per_line=40, lines=38
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<BR>
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[mustek] lines_per_buffer=819, bytes_per_line=40
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<BR>
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[mustek] reader: about to read 1520 bytes
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<BR>
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[mustek] reader_process: line=38 (num_lines=38), num_reqs=1
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<BR>
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[mustek] reader_process: 1520 bytes read.
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<BR>
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[mustek] mustek.output_data: data=0x813dca8, lpb=38, bpl=40, extra=0x8145ca8
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<BR>
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[mustek] read 1520 bytes
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<BR>
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[mustek] read -1 bytes
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<BR>
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<P>The interesting thing is that this all works with Linux kernels in the 2.0
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<BR>
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series. I tried 2.0.36 without any problems.
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<BR>
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<P>I'm not very good at reading C source, so the following could be quite
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<BR>
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wrong: I looked into the source (mustek.c) and I think the problem is related
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<BR>
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to sane_read and especially sane_read returning SANE_STATUS_GOOD with a len
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<BR>
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of 0. That shouldn't happen in the blocking case (if I understand the SANE
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<BR>
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standard correctly) but it does. XSane tries to use nonblocking mode but the
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<BR>
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problem does exist there, too. After the first return of sane_read with
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<BR>
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SANE_STATUS_GOOD and len=0 sane_read doesn't seem to get called again.
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<BR>
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Instead the frontend seems to get stuck somewhere.
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<BR>
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<P><P><P>2)
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<BR>
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<P>/dev/port access doesn't work anymore (with any frontend). It did work with
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<BR>
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Linux 2.0.36. The permissions should be set correctly. I'm using inb/outb
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<BR>
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now but I need to be root for that and don't like that :-)
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<BR>
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<P>debug log as normal user:
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<BR>
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<P>hmg@hmg1:~ > xsane
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<BR>
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[sanei_init_debug]: Setting debug level of mustek to 255.
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<BR>
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[mustek] attach: opening 0x32b as scsi device
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<BR>
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[mustek] dev_open: Invalid argument: can't open 0x32b as a SCSI device
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<BR>
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[sanei_init_debug]: Setting debug level of sanei_ab306 to 255.
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<BR>
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[sanei_ab306] sanei_ab306_ioport: using /dev/port access
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<BR>
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[mustek] dev_open: Error during device I/O: can't open 0x32b as a parallel-port device
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<BR>
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<P><P>Any ideas about that? Has anything been changed at /dev/port in the Linux
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<BR>
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2.2 series?
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<BR>
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<P>Bye,
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<BR>
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Henning
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<BR>
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<P><PRE>
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--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20Problems%20with%20XSane%20and%20Mustek%20backend&In-Reply-To=<20000118004042.A305@hmg1.vortex.robin.de>">majordomo@mostang.com</A>
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</PRE>
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<!-- next="start" -->
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<LI><STRONG>Next message:</STRONG> <A HREF="0128.html">Petter Reinholdtsen: "Re: Test"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0126.html">Bill Wohler: "Re: Dark scans (HP Photosmart)"</A>
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<!-- nextthread="start" -->
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0159.html">Henning Meier-Geinitz: "Re: Problems with XSane and Mustek backend"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0159.html">Henning Meier-Geinitz: "Re: Problems with XSane and Mustek backend"</A>
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<EM>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Mon Jan 17 2000 - 15:46:44 PST</EM>
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