Or is that really the only way to drive a darn GPIO port high and low? I would kindly appreciate any help in the issue. You are currently viewing LQ as a guest. Hi, Could u share the working code please. I guess a question can’t get any more basic than this one. Create free account Forgot password? Hi, With Linux versions v3.

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I’m sorry to bring up this topic, but it’s very similar to what I need so i’ll just add my question here.

Linux sam9263: How to read a button?

On top of this, GPIO keys functionality can be used for user space programs. Hi, With Linyx versions v3. Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome. Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.

Review your favorite Linux distribution. Software Engineer Implement spacecraft avionics software, implement ground control and If your applications are not using any GUI libraries then using sysfs is the most llnux method. If you need to reset your password, click here. Hi, Could u share the working code please. No registered gpil and 4 guests. I eventually will need to drive some GPIOs high or low depending on a condition very slow binary status stuff.


Create free kinux Forgot password? Hope my problem is close to the ogirin topic of the post, and there are many developers who would find useful the problem solution I need. I have always used micros in bare metal fashion and have always had direct control to drive GPIO ports however I wanted. Ok got it working with the open, and write functions.

What includes are required then?

I want to read any kind of buttons like DIP switch etc. Find More Posts by rk1genius.

How to read a button? Thanks and regards Rahul.

Drive a GPIO on a SAM9xEK via Linux – Welcome to AT91SAM Community Discussions

I am sure something is done in linux 2. Before Asking I’ve reviewed these documents: Thanks for the PI link. So it needs to be done with linux drivers. Many AT91 evaluation kits uses this interface. I guess a question can’t get any more basic than this one.

For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration.


The Device Tree is for configuring the board, and are used by the device drivers in the kernel. Introduction to Pinux Mike Silva. Protecting the IoT with Invisible Keys. If I had to write an application, how would I control this port?

Has anyone some sample code gpo a similar board or can help me to access the keys and leds? It is a kernel code. Glad I am not the only one trying to figure this out. Then i looked for the linuxkernel in my buildroot directorie and read these files: