[OCLUG-Tech] recommendations for current, online linux serial port programming tutorials?

["Robert P. J. Day" <rpjday [ at ] crashcourse [ dot ] ca>]

  i'm currently messing with serial port access from C programs on  
linux, so am wondering if anyone knows of any really good, current  
online tutorials.  so far, this one looks best:

http://www.easysw.com/~mike/serial/serial.html

but it is several years old so i'm wondering if there's anything  
newer, or whether it's an issue since the API really hasn't changed  
that much. thanks.

rday