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cat /proc/asound/card0/pcm0c/sub0/status and cat /proc/asound/card1/pcm0c/sub0/status are writing always closed even in the time audio recorder is working. Why?

cat /proc/asound/devices:
0: [ 0]   : control
16: [ 0- 0]: digital audio playback
24: [ 0- 0]: digital audio capture
...
56: [ 1- 0]: digital audio capture

cat /proc/asound/pcm:
00-00: ASOC CODEC_DAI-0 : : playback 1 : capture 1
01-00: ASOC_MVS MVS_CODEC_DAI-0 : : playback 1 : capture 1

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