forgot the dependency to libusb-devel so the recepi goes like this:

1. uninstall ibmasm package: rpm -e --nodeps ibmasm

2. install libusb-devel

3. get ibmusbasm and ibm asu packages from ibm website

4. install packages

5. run: /opt/ibm/toolscenter/asu/asu show

6. change desired parameters with /opt/ibm/toolscenter/asu/asu set RSA...

janez