serial ira not working

[Patrick K. <ke...@gm...>]

using serial ir reciever (ira-3) on ttyS0. modprobe.conf setup:
# lirc
alias char-major-61 lirc_serial
options lirc_serial irq=4 io=0x3f8
install lirc_serial /bin/setserial /dev/ttyS0 uart none ;\
    /sbin/modprobe --ignore-install lirc_serial

When I execute the last one from the command line I get:
install: installing multiple files, but last argument, `none' is not a
directory Try `install --help' for more information.

Is this normal?

my messages has:
Apr  2 09:08:24 media kernel: lirc_dev: IR Remote Control driver
registered, at major 61
Apr  2 09:08:24 media kernel: lirc_serial: auto-detected active high receiver
Apr  2 09:08:24 media kernel: lirc_dev: lirc_register_plugin:sample_rate: 0