TX2 with ALSA and I2S

Hello. I have a problem using ALSA.

We are working on connecting MEMS MIC using ALSA but there is a problem.

This is my ALSA source code.

int hello_init(void) {
const char *dmaengine = “tegra186-gpc-dma”;
int ret;

ret = request_module(dmaengine);
if (ret)
pr_alert(“Unable to request module load (Error)’%s’: %d\n”,
dmaengine, ret);

}

In the tutorial and document, there is no mention of dma module.
Using MEMS MIC with I2S, we need the mapping of dma module.

Please help me

@Constants
Would you please give more detail information. Why do you request the gpc-dma?

Hi Constants,

Any further information can be provided? Or this issue has been resolved?

Thanks