The FTDI USB IR Blaster is a FTDI based IR transceiver. This change is called out on IR Blaster blog post. Since only one of the changes indicated there is required and IR Blaster was not aware of any change still being needed this page documents the required change. I used LIRC v0.9.0.
Change Required
In lirc:daemons/hw_ftdi.c receive baud rate to 2400:
static int rx_baud_rate = 2400;
Example Command Line Execution
/usr/local/sbin/lircd -n -l -H ftdi -d serial=<your serial number> /etc/lirc/lircd.conf