[sane-devel] CanoScan LiDE 30 recognized but doesnt work

[aae]

Hello!
Would anybody tell how to operate with CanoScan LiDE 30 USB scanner?
sane-find-scanner has found scanner. But, I dont know which back-end
should I use. I try canon636u, set proper vendor & product IDs in
/etc/sane.d/canon636u.

$scanimage -d canon636u:/dev/usb/scanner0
reports 'Couldn't open device. Operation not permitted'.

I suppose I use improper back-end. Isn't it?
Also, any info concerning CanoScan 1240 may be useful I hope.
-- 
B.R., Alexander Avramenko                      mailto:aae at rbcmail.ru