[mythtv@mythbox .mythtv]$ aplay -L
front:CARD=CMI8738MC8,DEV=0
    C-Media PCI CMI8738-MC8, C-Media PCI DAC/ADC
    Front speakers
iec958:CARD=CMI8738MC8,DEV=0
    C-Media PCI CMI8738-MC8, C-Media PCI DAC/ADC
    IEC958 (S/PDIF) Digital Audio Output
null
    Discard all samples (playback) or generate zero samples (capture)