I'm thinking my problems are more ALSA-related than Beaglebone-specific. I wonder if anyone can help. With kernel 4.4.6-bone-rt-r7, and the CircuitCo AudioCape, I get a sound card in the system, but speaker-test reports errors (Unable to set hw params for playback: Invalid argument). I may have issues in various ALSA config settings; I'm hoping someone here can help me by showing me what to look at and change.

The CODEC is a tlv320aic3104.

Thanks!

----------- # 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

----------- # 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

----- More info:

My DTB: http://pastebin.com/Wja7ZQRk and DTBO: https://github.com/RobertCNelson/bb.org-overlays/blob/master/src/arm/BB-BONE...

Results of speaker-test, aplay, etc.:

http://pastebin.com/mMPbReAV

One possibility, ALSA is still not configured correctly for this cape, but I wonder if anyone has the right configuration for it?

Thanks!