EFUSE_BT_SEL_2    811 drivers/staging/rtl8188eu/include/rtl8188e_spec.h #define EFUSE_BT_SEL_2			0x3
EFUSE_BT_SEL_2   1158 drivers/staging/rtl8723bs/include/hal_com_reg.h #define EFUSE_BT_SEL_2			0x3