After having configured the Agfa SnapScan 1212u USB scanner with YaST2, you cannot work with it: xsane/xscanimage, etc. cannot be started and the error message Device not found (or similar) is displayed.
The cause is an error in the configuration and a wrong firmware.
Before the line break:
/dev/usbscanner #/dev/scanner
After the line break:
/dev/usbscanner #/dev/scanner
The firmware must be updated so that the scanner can be correctly addressed. This can be done by executing:
perl agfafirm SnapScan\ 1212U_2.bin
(It might be necessary to complete the paths to the specified files). The script agfafirm can be downloaded at no cost under:
http://snapscan.sourceforge.net/agfafirm
In addition, the file SnapScan 1212U_2.bin is required. This is (unfortunately) not available on the Agfa driver CD, but will be created in the Agfa directory (e.g. C:\Programs\Agfa\SnapScan 1212U_2.bin) during the Windows installation.
We would like to thank Oliver Leischner, who has provided us with this solution.