P17V_I2C_ADDR 218 sound/pci/emu10k1/io.c snd_emu10k1_ptr20_write(emu, P17V_I2C_ADDR, 0, tmp); P17V_I2C_ADDR 223 sound/pci/emu10k1/io.c status = snd_emu10k1_ptr20_read(emu, P17V_I2C_ADDR, 0);