Help me understand this Driver code!

fbarre · 09-24-2003, 11:52 AM

Thanks for checking my posting. I'm busy learning Linux device drivers and I was going over this sample code:

http://nexus.cs.usfca.edu/~cruse/cs635/led.c

I pretty much understood it but the only question I have is how can I write a value to the device-node '/dev/led' to test it?

I mean, is there a specific command for writing values to writable device files in /dev/ or should I just use vi?

thanks,

Mara · 09-24-2003, 04:39 PM

Use
echo value >/dev/led

fbarre · 09-24-2003, 05:10 PM

Mara.. Gracias!