Mechanic's post in Что-то намудрили с ядром в 2.11.C.1.0-2 was marked as the answer
На EXRA II не выходит каменный цветочек
root@Keenetic_Extra:/opt/tmp# ./vhusbdmipsel -c /opt/tmp/config.ini -r /opt/tmp/vhusbdmipsel.log &
root@Keenetic_Extra:/opt/tmp#
[1]+ Done(9) ./vhusbdmipsel -c /opt/tmp/config.ini -r /opt/tmp/vhusbdmipsel.log
vhusbdmipsel.log
Mon Apr 9 02:52:04 2018 LOG_INFO >>> Starting VirtualHere USB Server v3.6.0 (Built: Mar 27 2018, 18:36:03)<<<
Mon Apr 9 02:52:04 2018 LOG_INFO Using configuration /opt/tmp/config.ini
Mon Apr 9 02:52:04 2018 LOG_INFO >>> Shutdown <<<