agl-refhw-h3:~# afb-client-demo --human ws://localhost:30014/api?token=HELLO
iiodevices subscribe { "event": "gyroscope",  "args": "xyz", "frequency": "0.1" }
ON-REPLY 1:iiodevices/subscribe: OK
{
  "jtype":"afb-reply",
  "request":{
    "status":"success"
  }
}
ON-EVENT iiodevices/gyroscope0:
{
  "event":"iiodevices/gyroscope0",
  "data":{
    "scale":"0.000153",
    "scale_available":"0.000153 0.000305 0.000611 0.001222",
    "anglvel_x":2220,
    "anglvel_y":-187,
    "anglvel_z":341
  },
  "jtype":"afb-event"
}
ON-EVENT iiodevices/gyroscope0:
{
  "event":"iiodevices/gyroscope0",
  "data":{
    "scale":"0.000153",
    "scale_available":"0.000153 0.000305 0.000611 0.001222",
    "anglvel_x":652,
    "anglvel_y":253,
    "anglvel_z":639
  },
  "jtype":"afb-event"
}
iiodevices unsubscribe { "event": "gyroscope" }
ON-REPLY 2:iiodevices/unsubscribe: ERROR
{
  "jtype":"afb-reply",
  "request":{
    "status":"failed",
    "info":"unsubscription failed"
  }
}
[ 1398.977760] audit: type=1701 audit(1593401393.599:50): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=User::App::agl-service-iiodevices pid=1948 comm="afbd-agl-servic" exe="/usr/bin/afb-daemon" sig=6 res=1
ON-HANGUP
agl-refhw-h3:~#