GF1REGSEL 160 sound/isa/gus/gus_main.c gus->gf1.reg_regsel = GUSP(gus, GF1REGSEL); GF1REGSEL 311 sound/isa/gus/gus_pcm.c outb(SNDRV_GF1_GW_DRAM_IO16, GUSP(gus, GF1REGSEL));