**** List of PLAYBACK Hardware Devices **** card 0: OdroidXU4 [Odroid-XU4], device 0: Primary (*) [Primary (*)] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: OdroidXU4 [Odroid-XU4], device 2: Secondary (*) [Secondary (*)] Subdevices: 1/1 Subdevice #0: subdevice #0