After changing Linino to Openwrt USB audio does not work.

Hardware Arduino Yún
1

Hello all

I replaced my linino in Yun to Openwrt and have been super happy.

http://forum.arduino.cc/index.php?topic=235360.0

It works fast, and I have not experienced bugs.

But one thing stopped working.

Before, with linino I followed this tutorial and got audio in 5 minutes:

http://dev.mikamai.com/post/69775973742/arduino-yun-with-sound-the-supereasy-way

Now with openwrt I get this error:

audio: /dev/dsp: No such file or directory

When trying to run madplay testfile.mp3 for example it gives the error

Seems that something needs to be installed.

Some places mention using modprobe to install drivers but modprobe is not available in Openwrt.

Any ideas?

THANK YOU!

2

Make sure USB audio adaptor on USB Bus.

root@Arduino:/# lsusb
...
Bus 001 Device 003: ID 0d8c:000c C-Media Electronics, Inc. Audio Adapter
...

Install Kernel audio support and ALSA drivers

opkg update
opkg install kmod-sound-core 
opkg install kmod-usb-audio

root@Arduino:/# reboot

Make sure Kernel and drivers installed is correctly.

root@Arduino:/# ls /dev/dsp