PCM_A 109 sound/pci/oxygen/oxygen_pcm.c [PCM_A] = &oxygen_stereo_hardware, PCM_A 194 sound/pci/oxygen/oxygen_pcm.c return oxygen_open(substream, PCM_A); PCM_A 305 sound/pci/oxygen/oxygen_pcm.c [PCM_A] = OXYGEN_DMA_A_ADDRESS,