[sane-devel] Canon LiDE 25 and Oct 2nd snapshot

[Luke Kendall]

I took the snapshots from http://www.sane-project.org/snapshots/
which were:
    sane-backends-2005-10-02.tar.gz
    sane-frontends-2005-10-02.tar.gz

I also grabbed libusb-0.1.10a.tar.gz from sourceforge and isnatlled
that.  Though it installs as 0.1, which seems a strange numbering
scheme:

# ls -l /usr/local/lib/libusb*
lrwxrwxrwx  1 root root     19 Oct  2 18:57 /usr/local/lib/libusb-0.1.so.4 -> libusb-0.1.so.4.4.2
-rwxr-xr-x  1 root root  88284 Oct  2 18:57 /usr/local/lib/libusb-0.1.so.4.4.2
-rw-r--r--  1 root root 135422 Oct  2 18:57 /usr/local/lib/libusb.a
-rwxr-xr-x  1 root root    795 Oct  2 18:57 /usr/local/lib/libusb.la
lrwxrwxrwx  1 root root     19 Oct  2 18:57 /usr/local/lib/libusb.so -> libusb-0.1.so.4.4.2
lrwxrwxrwx  1 root root     21 Oct  2 18:57 /usr/local/lib/libusbpp-0.1.so.4 -> libusbpp-0.1.so.4.4.2
-rwxr-xr-x  1 root root 242498 Oct  2 18:57 /usr/local/lib/libusbpp-0.1.so.4.4.2
-rw-r--r--  1 root root 293564 Oct  2 18:57 /usr/local/lib/libusbpp.a
-rwxr-xr-x  1 root root    975 Oct  2 18:57 /usr/local/lib/libusbpp.la
lrwxrwxrwx  1 root root     21 Oct  2 18:57 /usr/local/lib/libusbpp.so -> libusbpp-0.1.so.4.4.2

I noticed an oddity when compiling the frontend: 

.... /usr/local/include -I/usr/include/gtk-1.2 -I/usr/include/glib-1.2 -I/usr/lib/glib/include -I/usr/X11R6/include gtkglue.c
cc1: warning: changing search order for system directory "/usr/local/include"
cc1: warning:   as it has already been specified as a non-system directory
make[1]: *** No rule to make target `../sanei/libsanei.a', needed by `xscanimage'.  Stop.
make[1]: Leaving directory `/home/luke/linux/scanner/sane-frontends/src'
make: *** [install-recursive] Error 1

Perhaps that was because I just did a "make install", and should have
made all first?  I went into sanei and just did a make in there and
continued on.

After I'd made install in sane-backend then sane-frontend (and moved
aside the older versions and re-ren ldconfig), I did a "modprobe
scanner" then "mount -t usbdevfs none /proc/bus/usb".  Then
sane-find-scanner reported the scanner:

....
found USB scanner (vendor=0x04a9 [Canon], product=0x2220 [CanoScan], chip=LM9832/3) at libusb:001:003
....

But scanimage -L didn't find it (as root).  I'll confess this is on a
very old system (RH 7.2, running kernel 2.4.28).

I then had a look for Stephan February's changes (in his post of Sept
29), but it looks like they didn't make it into the Oct2 2nd snapshots?

So I applied the changes manually to backend/plustek-usbdevs.c.

I was surprised that a "make" didn't compile anything.  I then looked
through the output from make and saw that plustek-usbdevs.c had never
been compiled in the first place.

So I think I'm a bit out of my depth now, since I don't understand how 
plustek-usbdevs.c gets compiled (it only appears in the DISTFILES list).

In the end I gave up and made clean and rebuilt everything, but I still
didn't notice plustek-usbdevs.c get compiled.

I did notice a few mildly interesting warnings though:

 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 -DPATH_SANE_CONFIG_DIR=/usr/local/etc/sane.d -DPATH_SANE_DATA_DIR=/usr/local/share -DPATH_SANE_LOCK_DIR=/usr/local/var -DV_MAJOR=1 -DV_MINOR=0 -DBACKEND_NAME=canon630u -DLIBDIR=/usr/local/lib/sane canon630u.c  -fPIC -DPIC -o .libs/canon630u.o
In file included from canon630u.c:67:
canon630u-common.c:69:1: warning: "USB_DIR_OUT" redefined
In file included from canon630u.c:62:
.../include/sane/sanei_usb.h:161:1: warning: this is the location of the previous definition
....
coolscan.c: In function `get_internal_info_LS20':
coolscan.c:1662: warning: string length `513' is greater than the length `509' ISO C89 compilers are required to support
....
umax.c: In function `umax_identify_scanner':
umax.c:3198: warning: string length `599' is greater than the length `509' ISO C89 compilers are required to support

In the end, it didn't make any difference though - sane-find-scanner
finds the Canon LiDE 25, but scanimage -L doesn't.

Any ideas what I've done wrong?

luke