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Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

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Old 11-01-2013, 05:15 AM   #1
rk1genius
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Registered: Nov 2013
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Writing User Space Program for AT91SAMA5 to control LEDs


hi,

I am new to embedded linux . I have recently got a board from Atmel SAMA53D3x .
However , no proper documentation is available on how to write applications .

Can anyone tell me how can i write a user space program to modify GPIOs
using buit-in GPIO driver .

Thanks and Regards ,
Rahul
 
Old 11-01-2013, 07:20 AM   #2
elucches
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Registered: Jan 2011
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For me the easiest way is to enable sysfs in the kernel.
Device Drivers -> GPIO Support -> /sys/class/gpio/... (sysfs interface)
Documentation/gpio.txt
 
  


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