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# # Configuration for the VC4-HDMI sound card using software IEC958 # subframe conversion # vc4-hdmi.pcm.hdmi.0 { @args [ CARD AES0 AES1 AES2 AES3 ] @args.CARD { type string } @args.AES0 { type integer } @args.AES1 { type integer } @args.AES2 { type integer } @args.AES3 { type integer } type iec958 slave { format IEC958_SUBFRAME_LE pcm { type hooks slave.pcm { type hw card $CARD device 0 } hooks.0 { type ctl_elems hook_args [ { name "IEC958 Playback Default" interface PCM optional true lock true preserve true value [ $AES0 $AES1 $AES2 $AES3 ] } ] } } } status [ $AES0 $AES1 $AES2 $AES3 ] hdmi_mode true } # default with plug and softvol vc4-hdmi.pcm.default { @args [ CARD ] @args.CARD { type string } type asym playback.pcm { type plug slave.pcm { type softvol slave.pcm { @func concat strings [ "cards.vc4-hdmi.pcm.hdmi.0:" "CARD=" $CARD "," "AES0=0x04," # IEC958_AES0_CON_NOT_COPYRIGHT | IEC958_AES0_CON_EMPHASIS_NONE "AES1=0x82," # IEC958_AES1_CON_ORIGINAL | IEC958_AES1_CON_PCM_CODER "AES2=0x00," # IEC958_AES2_CON_SOURCE_UNSPEC | IEC958_AES2_CON_CHANNEL_UNSPEC "AES3=0x01" # IEC958_AES3_CON_FS_NOTID (iec958 plugin will fill in actual rate) ] } control { name "PCM Playback Volume" card $CARD } } } }