* unique and mutually compatible
         */
 
-       if (cmd->start_src != TRIG_NOW) {
-               cmd->start_src = TRIG_NOW;
-               err++;
-       }
-
-       if (cmd->scan_begin_src != TRIG_FOLLOW) {
-               cmd->scan_begin_src = TRIG_FOLLOW;
-               err++;
-       }
-
-       if (devpriv->use_ext_trg) {
-               if (cmd->convert_src != TRIG_EXT) {
-                       cmd->convert_src = TRIG_EXT;
-                       err++;
-               }
-       } else {
-               if (cmd->convert_src != TRIG_TIMER) {
-                       cmd->convert_src = TRIG_TIMER;
-                       err++;
-               }
-       }
-
-       if (cmd->scan_end_src != TRIG_COUNT) {
-               cmd->scan_end_src = TRIG_COUNT;
-               err++;
-       }
-
        if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT)
                err++;