AudioCape Diagnostics

root@green:/home/debian# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: B [AudioCape Rev B], device 0: davinci-mcasp.0-tlv320aic3x-hifi tlv320aic3x-hifi-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

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root@green:/home/debian# speaker-test

speaker-test 1.0.28

Playback device is default
Stream parameters are 48000Hz, S16_LE, 1 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 16 to 32768
Period size range from 8 to 16384
Using max buffer size 32768
Periods = 4
Unable to set hw params for playback: Invalid argument
Setting of hwparams failed: Invalid argument

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[  372.649675] bone_capemgr bone_capemgr: part_number 'BB-BONE-AUDI-02', version 'N/A'
[  372.649713] bone_capemgr bone_capemgr: slot #4: override
[  372.649728] bone_capemgr bone_capemgr: Using override eeprom data at slot 4
[  372.649745] bone_capemgr bone_capemgr: slot #4: 'Override Board Name,00A0,Override Manuf,BB-BONE-AUDI-02'
[  372.663343] bone_capemgr bone_capemgr: slot #4: dtbo 'BB-BONE-AUDI-02-00A0.dtbo' loaded; overlay id #0
[  372.675651] 2-0018 supply IOVDD not found, using dummy regulator
[  372.675743] 2-0018 supply DVDD not found, using dummy regulator
[  372.675793] 2-0018 supply AVDD not found, using dummy regulator
[  372.675845] 2-0018 supply DRVDD not found, using dummy regulator
[  372.695594] asoc-simple-card sound: tlv320aic3x-hifi <-> 48038000.mcasp mapping ok
[  383.527842] davinci-mcasp 48038000.mcasp: stream has more channels (2) than are enabled in mcasp (0)
[  383.527872] davinci-mcasp 48038000.mcasp: ASoC: can't set 48038000.mcasp hw params: -22

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root@green:/home/debian# aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
default:CARD=B
    AudioCape Rev B,
    Default Audio Device
sysdefault:CARD=B
    AudioCape Rev B,
    Default Audio Device
dmix:CARD=B,DEV=0
    AudioCape Rev B,
    Direct sample mixing device
dsnoop:CARD=B,DEV=0
    AudioCape Rev B,
    Direct sample snooping device
hw:CARD=B,DEV=0
    AudioCape Rev B,
    Direct hardware device without any conversions
plughw:CARD=B,DEV=0
    AudioCape Rev B,
    Hardware device with all software conversions