Forum Post: RE: setting leds in linux kernel

Hi Trichet,

Have you tried to control the GPIO through commands "SYSFS"  instead of trying through "C" app ?

http://processors.wiki.ti.com/index.php/Linux_PSP_GPIO_Driver_Guide#User_Space_-_Sysfs_control

Try the below commands and update me the results.

Note:

Mention your appropriate GPIO no instead 45.

echo 45 > /sys/class/gpio/export

echo "out" > /sys/class/gpio/gpio45/direction

echo 0 > /sys/class/gpio/gpio45/value

echo 1 > /sys/class/gpio/gpio45/value