[newbie] Installing plustek9630.0.30 driver with SANE

[Antonio Carlos Ribeiro Nogueira]

Dear friends,

I am trying to install the plustek9630.0.30 driver with SANE following
your HOWTOO, but after I had bd been
succeed in the commands
(1); (2); (3)
(4) in this step I got a little bit confused, because when I unpakced
the plustek9630.0.30 in the /usr/local/temp
directory, it had already criated a /backend directory  there. Must I
need to create another directory /backend in
order to put all the stuff there including the plustek_driver sub
directory? Well, I tryied in both ways:
(a) just placing all the stuff in the /backend idrectory that was
created when I unpack plustek.tar.gz and in the
other form when (b) I first criated a /backend directory in
/usr/local/temp, or it be, I untar the plustek.tar.gz
inside /usr/local/temp/backend directory. After that I was succeed in
the steps (4); (5)
in (6) another doubt: how must I use the --disable-shared option?
CFLAGS="-g -O -Wall" ./configure --disable-shared   ? or
CFLAGS="-g -O -Wall --disable-shared" ./configure   ?
Anyway, I used just CFLAGS="-g -O -Wall" ./configure
Following the script in the step (8) I got succeed from (8a) until (8d)
(I skip the (8b) step because I was
already as su. But when I was give the command make -f Makefine load I
received the following error
message (I copied all the messages of the step (8):

[root@nogueira plustek_driver]# make -f Makefile
[root@nogueira plustek_driver]# make -f Makefile install
mkdir -p /lib/modules/2.2.13-7mdk/misc /lib/modules/misc
install -c pt_drv.o /lib/modules/2.2.13-7mdk/misc
install -c pt_drv.o /lib/modules/misc
[root@nogueira plustek_driver]# make -f Makefile unload
/sbin/modprobe -r pt_drv || exit 1
rm -f /dev/pt_drv
[root@nogueira plustek_driver]# make -f Makefile load
/sbin/modprobe pt_drv || exit 1
/lib/modules/2.2.13-7mdk/misc/pt_drv.o: init_module: Device or resource
busy
parport: Device or resource busy
make: *** [load] Error 1
[root@nogueira plustek_driver]#

I can't realize what is happing. I hope you may to help me. I would like
to thanks in advance.

Sincerely

Antonio Carlos