In our design we are using the SPI interface through system services to create drivers for different peripherials. However, Blackfin is the SPI master allthe time and we do not use the SPISS line, which we do need for some GPIO. In system services port control the SPISS is enabled together with the other basic SPI signals every time a driver is opened, so I do not see other solutions than to modify the system services code in this case.(I really dislikes to do this.) Is there a possibility that this problem could be addressed in future releases of system services?