I am wondering the same. Would have been nice to share your solution once you figured.
I am always getting "Error: must specify an option" when I am trying to send the ir signal using e.g. based on the above log file the following command:
flirc_util sendir 0,8978,4384,608,469,608,1592,608,469,608,464,613,1592,608,469,608,464,612,478,608,469,608,464,612,1589,612,465,612,1592,608,1593,612,464,613,473,612,1588,612,465,612,464,612,465,612,465,612,464,608,465,612,477,613,464,608,1592,612,1588,612,1588,612,1588,612,1589,612,1592,612,1592,612
What am I doing wrong?