Currently I have added/changed the following in my tvheadend42.start:
Code
TVH_ARGS_EXTRA="--satip_xml http://192.168.178.254:49000/satipdesc.xml"
# debug commandline
if [ "$DEBUG_LOG" = "true" ]; then
TVHEADEND_ARG="-B -C -u root -g video -c $ADDON_HOME -l ${DEBUG_LOG_PATH} --trace $DEBUG_LOG_ARG $TVH_ARGS_EXTRA"
else
TVHEADEND_ARG="-B -C -u root -g video -c $ADDON_HOME $TVH_ARGS_EXTRA"
fi