Agfa Snapscan e20

2.4, 2.6.2 kernel series
above 2.6.2 kernel series
1 - Scanner support via scanner kernel module

modprobe scanner
1 - Scanner support via libusb (hotplug support activated)

emerge libusb
2 - Applications

Upload firmware to scanner (the first version)
./ -v /dev/usb/scanner0 snape20.bin
Upload firmware to scanner via /etc/sane.d/snapscan.conf

Install your favorite application
emerge xsane
2 - Applications

To avoid rights problems with user accounts, look at below.

emerge media-gfx/sane-backends/sane-backends-1.0.14.ebuild

Don't forget to add your user account to your newly created group scanner.

After you give a try to your favorite application, XSane.
emerge xsane (personally, I use the 0.91 version)

Look at the following files :
/etc/sane.d/snapscan.conf (with the upload function enabled)
snape20.bin (only for download, my scanner firmware)