On Tue, Jun 2, 2015 at 10:19 AM,  <[email protected]> wrote:
> Hello.
>
> I'm trying to get BBB Rev C working with USB sound card. Everything works
> fine under kernel 3.8. But under 3.14 sound either completely stuck right
> after the boot (this happens most of the time) or it works for some time and
> then stuck. I don't know how to debug this issue. Here are usbmon traces
> taken when I issue "paplay /usr/share/sounds/alsa/Front_Center.wav" command:

If usb worked with 3.8 but fails with 3.14, it's probally:

CONFIG_USB_TI_CPPI41_DMA=y

So rebuild, with:

# CONFIG_USB_TI_CPPI41_DMA is not set
CONFIG_MUSB_PIO_ONLY=y

ps, you can also give 4.1.0-rc6 a try:

sudo apt-get update
sudo apt-get install linux-image-4.1.0-rc6-bone6
sudo reboot

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

-- 
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