Alright I was just assigned a project in dealing with sending a string from a PC via serial connection to a linux machine. The linux machine should be listening for input and once received, inform the PC. It is like a client(pc) server(linux) setup.
I already did this via ethernet thanks to all the helpful tutorials online. I am not finding one for serial comm. Here is what I have so far

ww.easysw.com/~mike/serial/serial.h tml (URL is missing w and there is a space in html)...says i need to do 15 posts first,,,unfortunately i dont have the time

The author provides functions, but does a poor job of describing parameters.
Could someone please help me with this, or atleast provide some sample code?