Hello,

I am trying to use my device as a sound card and enabled CONFIG_USB_AUDIO. However I don't know what kind of device node should be added in the machine file?

I just want to record whatever is coming into the USB played back by the host over USB.

I could get my device to be detected as a sound card i.e. USB_AUDIO_CLASS in my ubuntu machine.

My understanding of USB audio is very less so I thought below change should be sufficient.

Below are the only changes which i have done to enable USB_AUDIO.

Machine file: { .name = "something_random", .stream_name = "USB Capture", .cpu_dai_name = "snd-soc-dummy-dai", .codec_dai_name = "snd-soc-dummy-dai", .codec_name = "snd-soc-dummy", .ignore_suspend = 1, },

drivers/usb/gadget/u_uac1.c : #define FILE_PCM_PLAYBACK "/dev/snd/pcmC0D0p" #define FILE_PCM_CAPTURE "/dev/snd/pcmC0D0c"

in defconfig CONFIG_USB_AUDIO=y

Please let me know if I am doing anything wrong.

Thanks,