Blinking the USR0 LED in c

I have gotten the LED to blink using script files in angstrom 2.6.28
from another post...

I modified Brian's code from that website to turn on the led for the
angstrom 2.6.28 image that I have so I will just put this here to
recap
...anything between <> is what you should type do not type <>

choose a file folder

type <vi Blink_USR0>

then in vi enter in the following code...

Hello aero386,
this link can help you:
http://www.avrfreaks.net/wiki/index.php?title=Documentation:Linux/GPIO#Example_of_GPIO_access_from_within_a_C_program