0 [SI7012         ]: ICH - SiS SI7012
                      SiS SI7012 with ALC655 at irq 18

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aplay -L produces

null
    Discard all samples (playback) or generate zero samples (capture)
default:CARD=SI7012
    SiS SI7012, SiS SI7012
    Default Audio Device
front:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    Front speakers
surround40:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    4.0 Surround output to Front and Rear speakers
surround41:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
iec958:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    IEC958 (S/PDIF) Digital Audio Output