PCM_CENTER_LFE_CHANNEL 472 sound/pci/ca0106/ca0106_main.c [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_REG, PCM_CENTER_LFE_CHANNEL 478 sound/pci/ca0106/ca0106_main.c [PCM_CENTER_LFE_CHANNEL]= SPI_DACD2_BIT, PCM_CENTER_LFE_CHANNEL 556 sound/pci/ca0106/ca0106_main.c return snd_ca0106_pcm_open_playback_channel(substream, PCM_CENTER_LFE_CHANNEL);