irsend SET_TRANSMITTERS... failed

Hi,
I'm finally moving my mythtv installation to new hardware. This includes moving my beloved USB-UIRT. I first got it before it was properly supported in lirc, and now I've almost got it all set up: I can receive, and I can send on both blasters simultaneously.
Now I'm trying to send to individual blasters - as I was able to with my old myth box - and it fails.
~$ irsend set_transmitters 1
irsend: command failed: set_transmitters 1
irsend: hardware does not support multiple transmitters
lircd is version 0.8.4a
lsmod shows that lirc_dev, usb_serial, ftdi_sio are loaded.
/etc/lirc/hardware.conf has
TRANSMITTER_DRIVER="uirt2_raw"
TRANSMITTER_DEVICE="/dev/ttyUSB0"
Please help,
mythic
I'm finally moving my mythtv installation to new hardware. This includes moving my beloved USB-UIRT. I first got it before it was properly supported in lirc, and now I've almost got it all set up: I can receive, and I can send on both blasters simultaneously.
Now I'm trying to send to individual blasters - as I was able to with my old myth box - and it fails.
~$ irsend set_transmitters 1
irsend: command failed: set_transmitters 1
irsend: hardware does not support multiple transmitters
lircd is version 0.8.4a
lsmod shows that lirc_dev, usb_serial, ftdi_sio are loaded.
/etc/lirc/hardware.conf has
TRANSMITTER_DRIVER="uirt2_raw"
TRANSMITTER_DEVICE="/dev/ttyUSB0"
Please help,
mythic