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Altera_Forum's avatar
Altera_Forum
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16 years ago

Turn on Leds

Hi, I have managed to introduce linux in target DE2. These last days I was able to control a port of leds with the archive "nios2.h", but when I rebuilted the kernel I saw an interesting option...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Is there anyway to make gpio *inputs* available in userspace? I have this LED stuff working, but now I need some inputs.

Here they descirbe a more complete interface where direction can be set via sysfs, but it does not seem to exist in the Nios2 Linux distro.

http://www.avrfreaks.net/wiki/index.php/documentation:linux/gpio

Is that not available for Nios2?

Thanks,

Dave ...