If it is the only ftdi device plugged in, simply
> rosdep install kobuki_udev > roscd kobuki_udev > make > sudo ./bin/ftdi_koboki
will do the job, if not - optionally add an argument with the current serial id of the ftdi chip you want to flash to the last command.
If things go bums up, then you will find an eeprom.backup saved in your current directory that you can reflash back to the chip (using ./ftdi_write_eeprom).
> roscd kobuki > sudo cp 57-kobuki.rules /etc/udev/rules.d > sudo /etc/init.d/udev restart
WILL NOT WORK WITH libftdi 0.17!!!
libftdi needs to be upgraded to work for TYPE_R (can see FT232R on the iInterface variable in lsusb) ftdi chips. To workaround on lucid, simply uninstall ftdi and download the sources for version 0.2/0.3 and above (might also work on 0.18 from emails I've read).
Might work out of the box on oneiric, but I haven't tried.
Make sure you use sudo, if not, it will only retrieve part of the information.
> sudo lsusb # Get the two numbers to the left of the ftdi device (bus and ?? number) (e.g. 002, 007) > sudo lsusb -v -s 002:007
Much more detailed information of a currently connected device.
udevadm info -a --name /dev/ttyUSB0