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<TITLE>sane-devel: Re: Canon backend</TITLE>
<META NAME="Author" CONTENT="Henning Meier-Geinitz (henning@meier-geinitz.de)">
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<H1>Re: Canon backend</H1>
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<STRONG>From:</STRONG> Henning Meier-Geinitz (<A HREF="mailto:henning@meier-geinitz.de?Subject=Re:%20Canon%20backend&In-Reply-To=&lt;20010502230937.A843@vortex.swb.de&gt;"><EM>henning@meier-geinitz.de</EM></A>)<BR>
<STRONG>Date:</STRONG> Wed May 02 2001 - 14:09:37 PDT
<P>
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Hi,
<BR>
<P>On Wed, May 02, 2001 at 09:52:24PM +0000, Deiters wrote:
<BR>
<EM>&gt; &gt; Should/will this be included into the SANE CVS?
</EM><BR>
<EM>&gt; &gt;
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; I hope so. Whoever of the Grand Masters of SANE is reading this:
</EM><BR>
<EM>&gt; Please accept our humble offering. :-)
</EM><BR>
<P>Not a grand master :-) but:
<BR>
<P>Have you tried to contact the original authors? At least Manuel Panea
<BR>
is marked as active but I don't know if this is still true.
<BR>
<P>Can you update the manpage?
<BR>
<P>Shouldn't the FB620S be added to canon.desc? The version number is 0.1
<BR>
in canon.desc. Shouldn't this number be increased?
<BR>
<P>Ok, I'm trying to compile your backend on Linux/gcc with the CVS
<BR>
version of SANE:
<BR>
<P>making all in backend
<BR>
make[1]: Wechsel in das Verzeichnis Verzeichnis <20>/usr/src/sane/sane-backends/backend<6E>
<BR>
rm -f .libs/canon.lo
<BR>
gcc -c -g -O2 -W -Wall -Wcast-align -Wcast-qual -Wmissing-declarations -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wstrict-prototypes -pedantic -ansi -DHAVE_CONFIG_H -I. -I. -I../include -I../include -D_GNU_SOURCE -DPATH_SANE_CONFIG_DIR=/usr/local/etc/sane.d -DPATH_SANE_DATA_DIR=/usr/local/share -DV_MAJOR=1 -DV_MINOR=0 -DBACKEND_NAME=canon -DLIBDIR=/usr/local/lib/sane canon.c -fPIC -DPIC -o .libs/canon.lo
<BR>
In file included from canon.c:201:
<BR>
canon-scsi.c: In function `set_density_curve_fs2710':
<BR>
canon-scsi.c:643: warning: unused parameter `buf_size'
<BR>
canon-scsi.c: In function `set_parameters_fs2710':
<BR>
canon-scsi.c:686: parse error before `;'
<BR>
canon-scsi.c:686: parse error before `;'
<BR>
[...]
<BR>
<P>After removing a &quot;;&quot; in canon.h (MIN, MAX) compilation works. Please
<BR>
check the other warnings:
<BR>
make[1]: Wechsel in das Verzeichnis Verzeichnis <20>/usr/src/sane/sane-backends/backend<6E>
<BR>
rm -f .libs/canon.lo
<BR>
gcc -c -g -O2 -W -Wall -Wcast-align -Wcast-qual -Wmissing-declarations -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wstrict-prototypes -pedantic -ansi -DHAVE_CONFIG_H -I. -I. -I../include -I../include -D_GNU_SOURCE -DPATH_SANE_CONFIG_DIR=/usr/local/etc/sane.d -DPATH_SANE_DATA_DIR=/usr/local/share -DV_MAJOR=1 -DV_MINOR=0 -DBACKEND_NAME=canon -DLIBDIR=/usr/local/lib/sane canon.c -fPIC -DPIC -o .libs/canon.lo
<BR>
In file included from canon.c:201:
<BR>
canon-scsi.c: In function `set_density_curve_fs2710':
<BR>
canon-scsi.c:643: warning: unused parameter `buf_size'
<BR>
In file included from canon.c:2342:
<BR>
canon-sane.c: In function `sane_canon_init':
<BR>
canon-sane.c:4: warning: unused parameter `authorize'
<BR>
canon-sane.c: In function `sane_canon_exit':
<BR>
canon-sane.c:56: warning: cast discards qualifiers from pointer target type
<BR>
canon-sane.c:57: warning: cast discards qualifiers from pointer target type
<BR>
canon-sane.c: In function `sane_canon_get_devices':
<BR>
canon-sane.c:67: warning: unused parameter `local_only'
<BR>
canon-sane.c: At top level:
<BR>
canon-sane.c:1596: warning: no previous prototype for `sane_read_direct'
<BR>
canon-sane.c:1633: warning: no previous prototype for `read_fs2710'
<BR>
canon-sane.c: In function `read_fs2710':
<BR>
canon-sane.c:1647: warning: comparison between signed and unsigned
<BR>
canon-sane.c:1672: warning: pointer targets in passing arg 3 of `read_data' differ in signedness
<BR>
canon-sane.c:1685: warning: pointer targets in passing arg 3 of `read_data' differ in signedness
<BR>
canon-sane.c: In function `sane_canon_set_io_mode':
<BR>
canon-sane.c:1849: warning: unused parameter `handle'
<BR>
canon-sane.c:1849: warning: unused parameter `non_blocking'
<BR>
canon-sane.c: In function `sane_canon_get_select_fd':
<BR>
canon-sane.c:1859: warning: unused parameter `handle'
<BR>
canon-sane.c:1859: warning: unused parameter `fd'
<BR>
<P>Irix 6.2/cc: Same MIN/MAX problem as above.
<BR>
<P>AIX 4.3/gcc: See above.
<BR>
<P>Bye,
<BR>
&nbsp;&nbsp;Henning
<BR>
<P><PRE>
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