Set up Xmos sound output

Hello,

With the lubuntu official image, I have the Xmos output fully working (using 5V for the audio anplifier).

I wanted to use it on another linux (Recalbox). Using Recalbox, I have 2 audio devices :

• HDMI LPE AUDIO (such as on lubuntu)
• a device with a name that looks like bytnocodec (sorry for the inaccuracy) that does not produce any sound.

I don't have the Mayfield Audio device while checking with aplay -l.
I simply tried to add the module snd_usb_audio ti the kernel, and to add the alsa-base.conf file of lubuntu in the recalbox /etc/modprobe directory, without result.

These actions are only test, is there any regular procedure to set up the auxiliary audio device ?

Thanks,

Do you see the XMOS Audio device if you run dmesg?

I had to use the sysfs method on Lubuntu,maybe its the same?
i.e.

sudo sh -c echo 349 > /sys/class/gpio/export
sudo sh -c echo out > /sys/class/gpio/gpiopin/direction
sudo sh -c echo 0 > /sys/class/gpio/gpiopin/value
sudo sh -c echo 1 > /sys/class/gpio/gpiopin/value

After that I see the XMOS device in dmesg

Hello.
Thank you for the answer. The init procedure of the xmos processor does not works, the device is still invisible for the system with dmesg.

However a very interesting thing : if I boot official Ubuntu image and after my recalbox OS, the device is recognized in recalbox. Since I do not electrically switch off the power, the device is OK. It really seems that a simple initialization element is missing to me...