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80 wiersze
3.8 KiB
HTML
<!-- received="Fri May 7 15:46:14 1999 PDT" -->
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<!-- sent="Fri, 7 May 1999 16:41:56 -0400 (EDT)" -->
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<!-- name="grant@torque.net" -->
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<!-- subject="Re: parport scanners and the 90c26 adapter" -->
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<!-- id="199905072041.QAA25969@knot.torque.net" -->
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<!-- inreplyto="19990507193716.A304@diamond.tin.it" -->
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<title>sane-devel: Re: parport scanners and the 90c26 adapter</title>
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<h1>Re: parport scanners and the 90c26 adapter</h1>
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<a href="mailto:grant@torque.net"><i>grant@torque.net</i></a><br>
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<i>Fri, 7 May 1999 16:41:56 -0400 (EDT)</i>
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<p>
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<ul>
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<li> <b>Messages sorted by:</b> <a href="date.html#63">[ date ]</a><a href="index.html#63">[ thread ]</a><a href="subject.html#63">[ subject ]</a><a href="author.html#63">[ author ]</a>
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<!-- next="start" -->
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<li> <b>Next message:</b> <a href="0064.html">Michael Gee: "USB scanner drivers"</a>
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<li> <b>Previous message:</b> <a href="0062.html">Michele Bini: "parport scanners and the 90c26 adapter"</a>
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<!-- nextthread="start" -->
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<li> <b>Next in thread:</b> <a href="0066.html">Michele Bini: "Re: [PARPORT] Re: parport scanners and the 90c26 adapter"</a>
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<li> <b>Reply:</b> <a href="0066.html">Michele Bini: "Re: [PARPORT] Re: parport scanners and the 90c26 adapter"</a>
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<!-- reply="end" -->
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</ul>
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<!-- body="start" -->
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<i>> Who is working on it?</i><br>
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<p>
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I am, with some help from a small number of testers.<br>
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Currently, the driver is stable for all devices _except_<br>
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scanners. We can make it work with scanners, but it<br>
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is extremely slow. So slow that it is not useable.<br>
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<p>
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I have not yet solved this problem.<br>
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<p>
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<i>> I'd like to work on the code produced so far,</i><br>
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<i>> even if it is still at an experimental stage.</i><br>
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<p>
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Perhaps. Have you done any device driver debugging before ?<br>
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Do you understand the risks ? Be sure that you have a machine<br>
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available with nothing important on it.<br>
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<p>
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<i>> I received a Phantom 336CX scanner as a present</i><br>
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<i>> from a friend, and it seems to have a 90c26</i><br>
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<i>> parallel-scsi adapter in it.</i><br>
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<p>
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<i>> Using the paride on26 module i'm currently able to</i><br>
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<i>> turn off and on the led on it, and the driver seems</i><br>
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<i>> to be able to talk to the chip at first, but after</i><br>
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<i>> a few seconds it timeouts giving</i><br>
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<i>> </i><br>
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<i>> on26: Device reset failed (ff,ff)</i><br>
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<p>
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Actually, what's happened is that the paride driver<br>
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detects the 90c26 chip. The registers in the chip have<br>
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entirely different functions in the IDE application and<br>
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the SCSI application, except for the bus reset bit. The<br>
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ISA device reset and the SCSI bus reset happen to be <br>
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controlled by the same bit in the same register. That's<br>
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why you see the light flash.<br>
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<p>
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--------------------------------------------------------------------------<br>
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Grant R. Guenther <a href="mailto:grant@torque.net">grant@torque.net</a><br>
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--------------------------------------------------------------------------<br>
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<p>
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<p>
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<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">majordomo@mostang.com</a>
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</pre>
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<!-- body="end" -->
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<p>
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<ul>
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<!-- next="start" -->
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<li> <b>Next message:</b> <a href="0064.html">Michael Gee: "USB scanner drivers"</a>
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<li> <b>Previous message:</b> <a href="0062.html">Michele Bini: "parport scanners and the 90c26 adapter"</a>
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<!-- nextthread="start" -->
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<li> <b>Next in thread:</b> <a href="0066.html">Michele Bini: "Re: [PARPORT] Re: parport scanners and the 90c26 adapter"</a>
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<li> <b>Reply:</b> <a href="0066.html">Michele Bini: "Re: [PARPORT] Re: parport scanners and the 90c26 adapter"</a>
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<!-- reply="end" -->
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</ul>
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