Having a problem logging in? The Device Tree is for configuring the board, and are used by the device drivers in the kernel. Click Here to receive this Complete Guide absolutely free. I would be interested in seeing some application implementation examples as well. 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? Ok got it working with the open, and write functions.

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

The process with Linux shell is the following: I have always used micros in bare metal fashion and have always had direct control to drive GPIO ports however I wanted.

I eventually will need to drive some GPIOs high or low depending on a condition very slow binary status stuff. G;io a problem logging in? Who is online Users browsing this forum: Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.

BB code is On. Thanks and regards Gpko.


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

I guess a question can’t get any more basic than this one. All times are GMT Has anyone some sample code for a similar board or can help me to access the keys and leds? Open Source Consulting Domain Registration. Discussions at991 Arduino, plug computers and other micro-controller like devices are also welcome.

Are you new to LinuxQuestions. Rain dance time, IH.

Then i looked for the linuxkernel in my buildroot directorie and read these files: Ok got it working with the open, and write functions. 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. Find More Posts by rk1genius. I’ve you find something let me know: This book contains many real life examples derived from the author’s experience as a Linux system and network administrator, trainer and consultant.

[SOLVED] AT91 gpio device driver access

Find More Posts by Gobliins. How do i find or where is this table definig the banks? Join our community today!

They hope these examples will help you to get a better understanding of the Linux system and that you wt91 encouraged to try out things on your own. Registration is quick, simple and absolutely free.


Welcome to AT91SAM Community Discussions

That is bpio what I was looking for. I know there must be tons of people using embedded Linux for years that know the answer to this.

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. Regards, Evgenii Prun, Moscow, Russia. If you’d like to contribute content, let us know.

No registered users and 1 guest. Visit the following links: 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.

I’m sorry to bring up at911 topic, but it’s very vpio to what I need so i’ll just add my question here.