pcm_flags 599 sound/soc/atmel/atmel-i2s.c unsigned int pcm_flags = 0; pcm_flags 690 sound/soc/atmel/atmel-i2s.c pcm_flags |= SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX; pcm_flags 691 sound/soc/atmel/atmel-i2s.c err = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, pcm_flags);