Rfxtrx debug option

Configuration
1

Does anyone know what the debug: true option does in the rftrx configuration? I have this enabled for ages but I realized that I never saw some debug information in the homeassistant.log. Is it stored somewhere else?

# RFXCom tranceiver
rfxtrx:
  device: /dev/ttyUSB0
  debug: true
2

Okay, it seems the log is output in the standard homeassistant.log. I just had to set the log level a little bit higher default: debug or homeassistant.components.rfxtrx: debug