ZVSRCS 2058 sound/pci/emu10k1/emu10k1_main.c SPBYPASS, AC97SLOT, CDSRCS, GPSRCS, ZVSRCS, MICIDX, ADCIDX, FXIDX, ZVSRCS 255 sound/pci/emu10k1/emuproc.c val = snd_emu10k1_ptr_read(emu, ZVSRCS, 0);