If you’d like to contribute content, let us know. Then i looked for the linuxkernel in my buildroot directorie and read these files: The process with Linux shell is the following: No registered users and 1 guest. Having a problem logging in? Click Here to receive this Complete Guide absolutely free.

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Ok got it working with the open, and write functions.

Thanks for the PI link. And now I don’t know, who is to blame, the hardware or may be the driver. If you need to reset your password, click here.

arch/arm/mach-at91/gpio.c – kernel/omap – Git at Google

Last edited by jcarrillo on7: Glad I am not the only one trying to figure this out. Click Here to receive this Complete Guide absolutely free. I should have titled the subject, “The most basic Linux questions in the world” to get the most eyes.

I have always used micros in bare metal fashion and have always had direct control to drive GPIO ports however I wanted. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. xt91


[SOLVED] AT91 gpio device driver access

I’ve you find something let me know: All times are GMT Visit the following links: Before Asking I’ve reviewed these documents: Regards, Evgenii Prun, Moscow, Russia. Who is online Users browsing this forum: I would be interested in seeing some application implementation examples as well.

Find More Posts by Gobliins. Note that registered members see fewer ads, and ContentLink is completely disabled once you log in. Has anyone some sample code for a similar board or can help me to access the keys and gpioo I would kindly appreciate any help in the issue. 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.

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

[PATCH 7/9] ARM: at91/gpio: add .to_irq gpio_chip handler

I know there must be tons of people using embedded Linux for years that know the answer to this. Having a gio logging in?

I understand, that the post topic is old and nobody might not look at my posting, byt yet nonetheless 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.


Thanks and regards Rahul.

The process with Linux shell is the following: Then i looked for the linuxkernel in my buildroot directorie and read these files: Hi, With Linux versions v3. I guess a question can’t get any more basic than this one. 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?

Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome. I st91 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?