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I should have titled the subject, “The most basic Linux questions in the world” to get the most eyes. And now I don’t know, who is to blame, the hardware or may be the driver. Introduction to Linux – A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. 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. On top of this, GPIO keys functionality can be used for user space programs. Having a problem logging in?

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Hi, With Linux versions v3.

I have always used micros in bare metal fashion and have always had direct control to drive GPIO ports however I wanted. Find More Zt91 by rk1genius. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features.


Is there a ypio level command in Linux that can access already known ports that will allow me to drive this port or a way to accomplish this without adding a new device with it’s own Linux driver? The Device Tree is for configuring the board, and are used by the device drivers in the kernel.

This book contains many real life examples derived from the author’s experience as a Linux system and network administrator, trainer and consultant. I eventually will need to drive some GPIOs high or low depending on a condition very slow binary status stuff. 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. If you want to use that code you can do either ay91 these: User space programs will be able to use these buttons via event interface.

Welcome to AT91SAM Community Discussions

I want to read any kind of buttons like DIP switch etc. Who is online Users browsing this forum: Arduino Robotics Lonnie Honeycutt. Please visit this page to clear all LQ-related cookies.

I am sure something is done in linux 2. I would kindly appreciate any help in the issue. Regards, Evgenii Prun, Moscow, Russia.


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

Create free account Forgot password? Glad I am not the only one trying to figure this out. Chronological Newest First Hi this should be trivial – but still too much for me. If I had to write an application, how would I control this port? Rain zt91 time, IH.

[SOLVED] AT91 gpio device driver access

If linxu like to contribute content, let us know. Thanks and regards Rahul. Visit the following links: No registered users and 4 guests. Having a problem logging in?

Linux sam9263: How to read a button?

Last edited by jcarrillo on7: One pin will be left arrow, other will be ag91 Registration is quick, simple and absolutely free. I’ve you find something let me know: I know there must be tons of people using embedded Linux for years that know the answer to this.

It is a kernel code. Find More Posts by Gobliins.