Hello Yinghai and Bjorn, Issue solved. You were correct. The module fakephp.ko was not loaded. Now everything works ok and device driver need not to be changed. As you said is a normal PCI Device Driver. Now I want that that when ATCA card is without energy ( 11:00.0 DPIO module: PLD APPLICATIONS Device 6014 (rev ff) ) the command: echo 0 > /sys/bus/pci/slots/0000*/power is automatically executed. At the moment i'm doing it manually and after that my atca card driver is removed. And when i give energy to the ATCA card i have to manually perform pci bus re-enumeration with command: echo 1 > /sys/bus/pci/rescan and the ATCA card driver is automatically inserted. How can re-enumeration be done automatically? Paulo. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html