Create free account Forgot password? Is there a low 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? How to read a button? I guess a question can’t get any more basic than this one. I would kindly appreciate any help in the issue. Who is online Users browsing this forum: Visit the following links:

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

Introduction to Microcontrollers Mike Silva. I would be interested in seeing some application implementation examples as well.

Registration is quick, simple and absolutely free. I am sure something is done in linux 2. Thanks for the PI link. By liux 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.

Linux sam9263: How to read a button?

All times are GMT Sign in Sign in Remember me Forgot username or password? If you’d like to contribute content, let us know. If your applications are not using any GUI libraries then using sysfs is the most straightforward method. Gpiio includes are required then?


Let’s say we want to use GPIO5 as output. I guess a question can’t get any more basic than this one. This book contains many real life examples derived from the author’s experience as a Linux system and network administrator, trainer and consultant. Many AT91 evaluation kits uses this interface. Last edited at1 jcarrillo on7: I have always used micros in bare metal oinux and have always had direct control to drive GPIO ports however I wanted.

[SOLVED] AT91 gpio device driver access

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No registered users and 4 guests. The process with Linux shell is the following: Ok got it working with the open, and write functions. I understand, that the post topic is old and nobody might not look at my posting, byt yet nonetheless Has anyone some goio code for a similar board or can help me to access the keys and leds?


I want to read any kind of buttons like DIP switch etc. Chronological Newest First Hi this should be trivial – but still too much for me. And now I don’t know, who is to blame, the hardware or may be the driver. Open Source Consulting Domain Registration.

User space programs will be able to use these buttons via event interface. Find More Posts by rk1genius. Software Engineer Implement spacecraft avionics software, implement ground control and If I had to write an application, how would I control this port?

Protecting the IoT with Invisible Keys. Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

I eventually will need to drive some GPIOs high or low depending on a condition very slow binary status stuff.

Or is that really the only way to drive a darn GPIO port high and low?