odroid@odroid64:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: ODROIDHDMI [ODROID-HDMI], device 0: I2S dit-hifi-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
odroid@odroid64:~$ su
Password:  /* root password is "odroid" */
root@odroid64:/home/odroid# modprobe aml_i2c
root@odroid64:/home/odroid# modprobe snd_soc_pcm512x
root@odroid64:/home/odroid# modprobe snd_soc_pcm512x_i2c
root@odroid64:/home/odroid# echo pcm5242 0x4c > /sys/class/i2c-adapter/i2c-1/new_device
root@odroid64:/home/odroid# modprobe snd-soc-odroid-dac2
root@odroid64:/home/odroid# aplay -l
**** List of PLAYBACK Hardware Devices ***
card 0: ODROIDHDMI [ODROID-HDMI], device 0: I2S dit-hifi-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: ODROIDDAC2 [ODROID-DAC2], device 0: I2S pcm512x-hifi-0 []
  Subdevices: 0/1
  Subdevice #0: subdevice #0
root@odroid64:/home/odroid#