Serial programming in C?

[Bradley Miller]

Does someone have a good resource for doing some C programming under Linux
for accessing the serial port?   I'd appreciate it!  I'm wanting to get my
laptop datalogger project going again and need a way to build a bootable
disk that will store readings from various sensors on my car.   Let me know
-- I have the hardware portion already working . . . I just need something
besides Windoz . . . !!!

-- Bradley Miller