wiki/ODROID-U2.md

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2015-11-26 18:24:57 +00:00
## 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
```