snd_dmaengine_pcm_prepare_slave_config (9) Linux Manual Page
snd_dmaengine_pcm_prepare_slave_config – Generic prepare_slave_config callback
Synopsis
int snd_dmaengine_pcm_prepare_slave_config(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct dma_slave_config *slave_config);Arguments
substream
-
- PCM substream
params
- hw_params
slave_config
- DMA slave config to prepare
Description
This function can be used as a generic prepare_slave_config callback for platforms which make use of the snd_dmaengine_dai_dma_data struct for their DAI DMA data. Internally the function will first call snd_hwparams_to_dma_slave_config to fill in the slave config based on the hw_params, followed by snd_dmaengine_set_config_from_dai_data to fill in the remaining fields based on the DAI DMA data.