--- a/master/rtdm.c	Fri Oct 05 01:26:51 2018 +0200
+++ b/master/rtdm.c	Fri Oct 05 17:45:44 2018 +0200
@@ -203,13 +203,45 @@
     switch (request) {
         /*
             Requests to be handled directly in primary domain
+            
+            Note: list was made by selecting calls in ioctl.c 
+                  that seems not to make calls forbiden in primary mode
         */
+        case EC_IOCTL_MASTER_RESCAN:
         case EC_IOCTL_SEND:
         case EC_IOCTL_RECEIVE:
         case EC_IOCTL_MASTER_STATE:
+        case EC_IOCTL_MASTER_LINK_STATE:
+        case EC_IOCTL_APP_TIME:
+        case EC_IOCTL_SYNC_REF:
+        case EC_IOCTL_SYNC_SLAVES:
+        case EC_IOCTL_REF_CLOCK_TIME:
+        case EC_IOCTL_SYNC_MON_QUEUE:
+        case EC_IOCTL_SYNC_MON_PROCESS:
+        case EC_IOCTL_SC_EMERG_POP:
+        case EC_IOCTL_SC_EMERG_CLEAR:
+        case EC_IOCTL_SC_EMERG_OVERRUNS:
+        case EC_IOCTL_SC_STATE:
         case EC_IOCTL_DOMAIN_STATE:
         case EC_IOCTL_DOMAIN_PROCESS:
         case EC_IOCTL_DOMAIN_QUEUE:
+        case EC_IOCTL_SDO_REQUEST_INDEX:
+        case EC_IOCTL_SDO_REQUEST_TIMEOUT:
+        case EC_IOCTL_SDO_REQUEST_STATE:
+        case EC_IOCTL_SDO_REQUEST_READ:
+        case EC_IOCTL_SDO_REQUEST_WRITE:
+        case EC_IOCTL_SDO_REQUEST_DATA:
+        case EC_IOCTL_REG_REQUEST_DATA:
+        case EC_IOCTL_REG_REQUEST_STATE:
+        case EC_IOCTL_REG_REQUEST_WRITE:
+        case EC_IOCTL_REG_REQUEST_READ:
+        case EC_IOCTL_VOE_SEND_HEADER:
+        case EC_IOCTL_VOE_REC_HEADER:
+        case EC_IOCTL_VOE_READ:
+        case EC_IOCTL_VOE_READ_NOSYNC:
+        case EC_IOCTL_VOE_WRITE:
+        case EC_IOCTL_VOE_EXEC:
+        case EC_IOCTL_VOE_DATA:
             return ec_rtdm_ioctl(fd, request, arg);
         default:
             break;