#COM1 equivalent, /dev/ttyS0
{% if serial_device == "ttyS0" %}
options serial_ir irq=4 io=0x3f8
{% elif serial_device == "ttyS1" %}
#COM2 equivalent, /dev/ttyS1
options serial_ir irq=3 io=0x2f8
{% endif %}
install serial_ir setserial /dev/{{serial_device}} uart none; /sbin/modprobe --ignore-install serial_ir