plustek@linuxhacker.org

Hello Kevin !

Thank you a lot for your tip ! I resolved my problem
by following the DMA direction...

In fact, DMA access (CONFIG_PARPORT_PC_FIFO in the
config) was activated in the kernel, but it didn't
work.

So I had a look in the parport.txt located in the
kernel source tree (in Documentation), and they said
that sometimes the DMA is not detected by the module.
So you must load the parport_pc module by specifying
the dma options, like this:
modprobe parport_pc io=0x378 irq=7 dma=3

And this time, the plustek driver loads perfectly, and
I can scan images !

Thank you everybody !

Benoit

>    FWIW, I have been running several MBs with the PP
>set to ECP+EPP in 
>the BIOS, for my 9636T scanner, for some time (well
>over a year). I need 
>to do this to have the scanner work with Windows
under >VMWARE. I use 
>Mandrake, which has support for dma PP transfers
>(needed for ECP mode, 
>as well as an interrupt for the PP) turned on by
>default in the stock 
>kernel. Other distros, in particular Red Hat, do not
>have this turned 
>on; you have to recompile the kernel with this option
>enabled (This info 
>comes from some reports on the parallel port mailing
>list). Unless there 
>is something strange about a particular scanner (the
>older ones, 
>probably), if you have ECP+EPP mode enabled in the
>BIOS and have the 
>proper support in the kernel, the scanner should work
>fine with this 
>setting.
>
>    Kevin

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