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<TITLE>sane-devel: Re: New Interface sanei_pa4s2...</TITLE>
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<META NAME="Author" CONTENT="Jochen Eisinger (jochen.eisinger@gmx.net)">
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<META NAME="Subject" CONTENT="Re: New Interface sanei_pa4s2...">
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<H1>Re: New Interface sanei_pa4s2...</H1>
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<STRONG>From:</STRONG> Jochen Eisinger (<A HREF="mailto:jochen.eisinger@gmx.net?Subject=Re:%20New%20Interface%20sanei_pa4s2...&In-Reply-To=<393E0C5F.FEE11DB@gmx.net>"><EM>jochen.eisinger@gmx.net</EM></A>)<BR>
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<STRONG>Date:</STRONG> Wed Jun 07 2000 - 01:48:31 PDT
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<LI><STRONG>In reply to:</STRONG> <A HREF="0047.html">Petter Reinholdtsen: "Re: New Interface sanei_pa4s2..."</A>
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Petter Reinholdtsen wrote:
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<BR>
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<EM>>
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</EM><BR>
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<EM>> Is this chipset API enough for the backend to only implement the
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</EM><BR>
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<EM>> high-level functionallity, and not require any hw access?
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</EM><BR>
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<EM>>
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</EM><BR>
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This depends on what you mean withhw access. This interface gives an
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<BR>
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backend easy access to the registers of a A4S2 chipset so the backend
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<BR>
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needs not to use inb/outb. But the backend still cares about what to
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<BR>
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send to the registers... To summarize this, the interface just cares
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<BR>
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about the low level protocoll.
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<BR>
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<P><P><EM>>
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</EM><BR>
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<EM>> After reading thru the source, it seems like a few of the functions
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</EM><BR>
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<EM>> might be used to improve the pio API. It must be possible to make a
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</EM><BR>
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<EM>> parport API that works on all platforms. Are the _epp functions
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</EM><BR>
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<EM>> implementing the 'enhanced parport' mode? I've been reading about the
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</EM><BR>
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<P>They are taken from a VxD-driver and as far as I know, this driver only
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<BR>
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works when EPP/ECP mode is activated in the BIOS. So I don't think the
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<BR>
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implement this mode, they just use it...
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<BR>
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<P><EM>> the Linux parport kernel API, and noticed support for epp, ecp and
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</EM><BR>
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<EM>> nibble mode in this API. Would a sanei parport API with support for
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</EM><BR>
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<EM>> such modes make it easier to support parport scanners?
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</EM><BR>
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<P>Again, I don't know. But I'll have a look at this API. :-)
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<BR>
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<P><EM>>
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</EM><BR>
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<EM>> Happy hacking,
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</EM><BR>
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<P>Thanks :-)
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<BR>
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<P>-- jochen
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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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<EM>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Wed Jun 07 2000 - 02:13:24 PDT</EM>
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