It is (or should be) using termios.ph, which should already be there (if not, do a 'man h2ph'). You can test with:

perl -e 'require "termios.ph"';
[download]

There was an article on SerialPort (at least the Win32 one) in a past issue of TPJ. I have never used it, so I wouldn't know where to find any good examples. I would suggest looking at any test scripts that may come with the module distro.

Have you tried using it and gotten errors, or stuck looking for a Termios module before trying it?

Cheers,
KM