ODROID-U2

HDMI audio

To enable audio over HDMI, add the following to your asound.conf:

pcm.!default {
   type hw
   card 0
}
ctl.!default {
   type hw
   card 0
}

CPU Fan

The optional CPU fan can be controlled via the /sys/devices/platform/odroidu2-fan interface.

# echo auto > /sys/devices/platform/odroidu2-fan/fan_mode
# echo manual > /sys/devices/platform/odroidu2-fan/fan_mode

Fan Speed (Manual Only)

Values range from 0 (0%) to 255 (100%)

# echo 0 > /sys/devices/platform/odroidu2-fan/pwm_duty
# echo 255 > /sys/devices/platform/odroidu2-fan/pwm_duty