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AC97 Codec Registers

Printing Codec Registers

cd /sys/kernel/debug/asoc/wm97xx-audio/wm9712-codec
cat codec_reg

Changing Codec Registers

cd /sys/kernel/debug/asoc/wm97xx-audio/wm9712-codec
# write 0x1234 to reg 2
echo 0x2 0x1234 >codec_reg

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