ec_master is running with major 254, i created the entry point like this: mknod /dev/ethercat c 254 0 how are the entries (master0, debug_level) created within the /dev/ethercat for e.g. changing the debug_level? echo 1 > /sys/ethercat/master0/debug_level could'nt find any docu on this. best regards Q.Nardin