Most Linux and BSD systems that I have used support the `dmesg` command that will give you vital information on your system.
The dmesg below is for my ports on a FreeBSD box:
Code:
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 8250
sio1: configured irq 3 not in bitmap of probed irqs 0
ppc0: parallel port not found.
I have them turned off in the BIOS, hence not too much information about them other than I know they use an old 8250 UART.
