troubleshooting RS-232 ir receiver

[Angus <syl...@is...>]

I'm able to get an /etc/lircd.conf file generated without incident with 
irrecord, but when I try testing it with irw or irexec I don't get any 
sign of life. Here's the lircd.conf I'm using:

begin remote

  name   kworld
  flags RAW_CODES|CONST_LENGTH
  eps            30
  aeps          100

  ptrail          0
  repeat     0     0
  gap    108236

      begin raw_codes

          name power
             9111    4423     656     472     619    1634
              635    1632     614     501     653     478
              628     508     625     490     660    1609
              637    1609     633    1618     648     483
              624    1627     655     474     617    1636
              635    1634     614     501     648     484
              632    1618     657    1610     637    1609
              635    1616     648     484     622     513
              623     492     655    1614     632     486
              652     474     621     517     635     480
              639    1628     621    1626     618    1637
              647

      end raw_codes

end remote

and the .lircrc:
begin
        remote = kworld
        button = power
        prog   = irexec
        repeat = 0
        config = echo "Hello world!"
    end


What do I try next?