[Alsa-user] how to capture i2s FIFO buffer

[Raja M. <raj...@mo...>]

Hi all,=20

I have a few  Q's regarding the alsa driver I am working for. I am using =
i2s contriller with standalone UDA1341 codec for my board.=20

Now, I have realised I have to write ALSA driver PCM( data-path) and =
Controls( uda1341 mixer) for ALSA drivers to work.=20

In ALSA PCM, I want to copy the Tx/Rx h/w FIFO buffers to PCM sunstream. =
As my board does not support mmap, dma, what should I do to transfer =
these buffers to PCM substream . I kown I have do this while =
pcm_trigger() call but realy don't know what to do?

Kindly share your views and reference..

Regards
Raja Mallik