snd_dmaengine_pcm_request_channel (9) Linux Manual Page
snd_dmaengine_pcm_request_channel – Request channel for the dmaengine PCM
Synopsis
struct dma_chan *snd_dmaengine_pcm_request_channel(dma_filter_fn filter_fn, void *filter_data);Arguments
filter_fn
-
- Filter function used to request the DMA channel
filter_data
- Data passed to the DMA filter function
Description
Returns NULL or the requested DMA channel.
This function request a DMA channel for usage with dmaengine PCM.