digital_pcm 920 sound/pci/echoaudio/echoaudio.c chip->digital_pcm = pcm; digital_pcm 954 sound/pci/echoaudio/echoaudio.c chip->digital_pcm = pcm; digital_pcm 341 sound/pci/echoaudio/echoaudio.h struct snd_pcm *analog_pcm, *digital_pcm;