Hello,

I am trying to write an ALSA-driver that puts the audio data over the SSC channel to the FPGA. This FPGA routes the Data to the AD/DA chips.

I tried to figure out how I can do this with the ASoC Interfaces but I am currently stuck. Currently there is an Atmel SSC and PCM Interface that I can probably use. If I want to use the ASoC API I need to have a Codec Driver. But I don't have direct access to the codec.

How should I proceed? I have 2 possibilities I think: Writing a Codec Driver / Writing an Alsa Driver as described in the guide of Takashi Iwai.

If I write a character device that transfers data to the FPGA over the SSC I can hear sound, but I want to use ALSA because the use of audio applications will be easy and flexible.

Thank you in advance!

Regards, Michel