DART-SD410 - Using Peripherals

This WIKI describes how to use some simple peripheral devices available on VAR-DT410CustomBoard.

Using User LED1

User LED1 (D6) connected to GPIO21 of the CPU. The LED1 is defined in the apq8016-var-dt410.dtsi file under gpio-leds section.

general1 {
	gpios = <&msm_gpio 21 0>;
	label = "led1";
	linux,default-trigger = "none";
	default-state = "off";
	retain-state-suspended;
};

The user can access the LED device via serial console by:

$ su 
# cd /sys/class/leds/led1
# echo 1 > brightness
The led will turn on
# echo 0 > brightness
The led will turn off

DART-SD410 Android Examples