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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

Thanks for your answers Hippo.

Doing in this manner I associated a Pio component(Sopc_Builder) with Gpio in linux.But what happens If I would like to insert another Pio component in Sopc_Builder and the two of them I would like to use with gpio. Then I would have two variables in Sopc_Builder for one gpio variable.

The other question that I have is that in your first answer you said:" you can control led on/off with led sysfs class in /sys/class/leds."

When I enter in /uClinux-dist/romfs/sys there aren't nothing , maby it is not the correct path? The drivers are installed(GPIO and LEDS), they appear in /uClinux-dist/linux-2.6.x/drivers

Thanks a lot for your time