SET_CHANNEL       546 sound/pci/ca0106/ca0106.h #define SET_CHANNEL 0  /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */
SET_CHANNEL       106 sound/pci/emu10k1/p16v.c #define SET_CHANNEL 0  /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */