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<TITLE>sane-devel: Re: make backend work on usb</TITLE>
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<META NAME="Author" CONTENT="Oliver Neukum (Oliver.Neukum@lrz.uni-muenchen.de)">
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<META NAME="Subject" CONTENT="Re: make backend work on usb">
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<H1>Re: make backend work on usb</H1>
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<!-- received="Sun Feb 6 13:17:47 2000" -->
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<!-- name="Oliver Neukum" -->
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<!-- subject="Re: make backend work on usb" -->
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<STRONG>From:</STRONG> Oliver Neukum (<A HREF="mailto:Oliver.Neukum@lrz.uni-muenchen.de?Subject=Re:%20make%20backend%20work%20on%20usb&In-Reply-To=<00020619475900.04762@chani>"><EM>Oliver.Neukum@lrz.uni-muenchen.de</EM></A>)<BR>
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<STRONG>Date:</STRONG> Sun Feb 06 2000 - 10:32:15 PST
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<LI><STRONG>Next message:</STRONG> <A HREF="0069.html">msitkows@au1.ibm.com: "Re: make backend work on usb"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0067.html">Joseph Rayford + Martina Eoff: "Re: Phantom 330 CX and microtek2 again"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0065.html">John Gay: "Re: make backend work on usb"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0069.html">msitkows@au1.ibm.com: "Re: make backend work on usb"</A>
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<P>
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Am Son, 06 Feb 2000 schrieben Sie:
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<BR>
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<EM>> I've been following both the USB and the sane list since I bought an AGFA
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</EM><BR>
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<EM>> snapscan USB scanner. After much testing and fighting, and despite loads of help
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</EM><BR>
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<EM>> from both groups, I eventually flogged this scanner for a SCSI one. However, I
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</EM><BR>
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<EM>> do know that there has been success in this area. Namely, David Nelson was able
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</EM><BR>
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<EM>> to get a few HP USB scanners to work. The solution is two-fold. First, you have
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</EM><BR>
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<EM>> to get the scanner talking to your PC over the USB port. This is the job of the
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</EM><BR>
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<P>I've gotten into contact with David Nelson and joined several
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<BR>
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mailing lists. I get the scanner to be detected.
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<BR>
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However, from the USB side the scanner is odd. I forced the driver
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<BR>
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to talk to the scanner regardless. I am quite confident that I can write
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<BR>
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to the scanner. I am not sure whether I can read from the scanner.
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<BR>
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<P><EM>> USB driver. This will give you a /dev/usbscanner. Next, you need to get sane to
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</EM><BR>
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<EM>> talk to your scanner via /dev/usbscanner.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> First point: Have a look @ www.linux-usb.org and get on there mailing list.
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</EM><BR>
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<EM>> David Nelson has got some HP scanners talking via usb, and with a little
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</EM><BR>
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<EM>> modification of his code, I had my AGFA talking as well. David was quite helpful
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</EM><BR>
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<EM>> with this, considering that I'm am not a programmer, he showed me exactly where
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</EM><BR>
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<EM>> to modify the code and exactly what to change to get it talking. Once you get
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</EM><BR>
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<EM>> your scanner talking over USB, then you need to work with the sane side.
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</EM><BR>
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<P>The scanner reports two sources of data. I am not sure
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<BR>
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whether I am reading from the correct one, or even if I need to do some
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<BR>
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weirder stuff.
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<BR>
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The scanner simply doesn't answer. Now I don't know whether that is because
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<BR>
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I do the reading wrongly, or I do send the wrong commands.
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<BR>
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<BR>
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<EM>> Sane side: Now that your scanner is talking over USB, it may not be talking
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</EM><BR>
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<EM>> SCSI. If you are lucky, as David was with HP, the scanner may use the same
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</EM><BR>
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<EM>> protocol. Otherwise, you will need to find out what protocol the scanner uses
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</EM><BR>
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<EM>> over USB. The HP's did use SCSI over the USB port, but, sadly, my AGFA scanner
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</EM><BR>
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<EM>> didn't. This was why I eventually sold it to my niece, who is using Windows98.
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</EM><BR>
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<BR>
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The windows driver does, according to documentation, both types.
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<BR>
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<P><EM>> This will be a major undertaking on your part to get this working. Lots of
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</EM><BR>
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<EM>> people on both lists will be quite helpful, but you can expect to do quite a bit
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</EM><BR>
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<P>I am going to try to read from the other source, unless I get better ideas.
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<BR>
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I'd appreciate links to tools. I know C but neither USB nor scanners.
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<BR>
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Please, please suggestions !?
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<BR>
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<P><EM>> of work, with assistance. IF you can get it working, you can feel quite good
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</EM><BR>
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in > yourself for making such a major contribution to Linux. USB and scanners
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<BR>
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are > areas that need lots of work. If not, be more careful when buying
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<BR>
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hardware. I > know, I've made many mistakes buying hardware only to find that
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<BR>
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the support > wasn't there. I am now much more careful to check what is and
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<BR>
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isn't supported > before I buy now. I've had to replace a modem, a printer and
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<BR>
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a scanner. And I've > gotten loads of grief from the wife each time.
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<BR>
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<EM>>
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</EM><BR>
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<EM>> Good luck with your scanner and I hope you can get it working. Linux need as
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</EM><BR>
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<EM>> much hardware support as possible. Especially USB.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Cheers,
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> John Gay
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> --
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</EM><BR>
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<EM>> Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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</EM><BR>
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<EM>> To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20make%20backend%20work%20on%20usb&In-Reply-To=<00020619475900.04762@chani>">majordomo@mostang.com</A>
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</EM><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:%20make%20backend%20work%20on%20usb&In-Reply-To=<00020619475900.04762@chani>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0069.html">msitkows@au1.ibm.com: "Re: make backend work on usb"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0067.html">Joseph Rayford + Martina Eoff: "Re: Phantom 330 CX and microtek2 again"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0065.html">John Gay: "Re: make backend work on usb"</A>
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<!-- nextthread="start" -->
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0069.html">msitkows@au1.ibm.com: "Re: make backend work on usb"</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>Sun Feb 06 2000 - 13:18:36 PST</EM>
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