usb6fire_pcm_get_substream 425 sound/usb/6fire/pcm.c struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub); usb6fire_pcm_get_substream 464 sound/usb/6fire/pcm.c struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub); usb6fire_pcm_get_substream 508 sound/usb/6fire/pcm.c struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub); usb6fire_pcm_get_substream 540 sound/usb/6fire/pcm.c struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub);