How to list all I/O ports in windows/linux?

Question

We can use netstat to list all software ports,but how to list all hardware ports,is there such a tool?

Solution 1

Under Linux:

cat /proc/ioports

Solution 2

To view how your computer has assigned your I/O addresses open Device Manager,

1. click View at the top of the Device Manager window
2. click Resources by type, and then select Input/Output (IO).

This should give you an output similar to the picture shown below.

Comments

[io2]

Does dmidecode show information about the port number of a device?

[Ignacio Vazquez-Abrams]

Not that kind of port.