Re: [alsa-devel] Stream format conversion in SoC driver

Giedrius Trainavičius wrote:

The I2S and DMA format asymmetry sounds like what I'd be after. Do you have any pointers for APIs / keywords to look around for in the code to see how this should be set up?

This is typically done in the hw_params callback.

Is such format conversion supposed to be happening in hardware itself

Yes; see figure 8-1:

https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2835/BCM28...

Regards, Clemens