Cannot create RT messagebuffer thread: Operation not permitted (1) Retrying messagebuffer thread without RT scheduling Messagebuffer not realtime; consider enabling RT scheduling for user ffado-test-isoxmit: unrecognized option '--version' Try `ffado-test-isoxmit --help' or `ffado-test-isoxmit --usage' for more information. no message buffer overruns

Cannot create RT messagebuffer thread: Operation not permitted (1) Retrying messagebuffer thread without RT scheduling Messagebuffer not realtime; consider enabling RT scheduling for user no message buffer overruns Usage: ffado-test-isoxmit [OPTION...] FFADO -- ISO transmit stall test -b, --buffersize=buffersize number of packets to buffer -c, --channel=channel iso channel to use -i, --interval=interval interrupt interval in packets -p, --port=port firewire port to use -P, --rtprio=prio real time priority of the iterator process/thread (0 = no RT) -r, --printinterval=packets number of packets between successive status prints -s, --packetsize=packetsize packet size to use -t, --startoncycle=cycle start on a specific cycle -u, --countdown=count number of iterations to run -v, --verbose=level Verbose level -x, --prebuffers=packets number of packets to prebuffer -?, --help Give this help list --usage Give a short usage message Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.