imx6q(d) i2s without audio codec initialization

[stanislavgeorge]

Can somebody help me, I want to get i2s signal from imx6q without initialization of audio codec.  I want to use external controller  that will receive the i2s signal, and then  configure the DAC  and send data to it?

How can i initialize audio i2s interface in alsa.

[hsl]

Hello there:
Is this problem solved?
I am experiencing similar problems now. How do I register a virtual sound card? Can you provide me some source code for my reference?
thank you very much!

[saurabh206]

Hi George

You need to register dummy sound-card.

- Configure SSI and AUDMux.

- You need to configure SSI clocking

•      SSI master mode if SSI provides clock to external codec.
• SSI slave if external codec provides clock to SSI.

Thanks

Saurabh

[hsl]

Hi，Saurabh：

Excuse me，How can I register a virtual sound card?

thank!

[stanislavgeorge]

Hello, Saurabh.

So configuration of SSI using dts file? That's right?

[saurabh206]

Hi George

You need to

- Configure SSI using DTS file.

- Add dummy codec.

- Add platform specific driver code for SSI direction and clocking.

- Use ALSA for testing.

Thanks

Saurabh