REG_WIFI_BT_INFO
rtw_write16(rtwdev, REG_WIFI_BT_INFO, BIT_BT_INT_EN);
rtw_write16(rtwdev, REG_WIFI_BT_INFO, val);
return (rtw_read16(rtwdev, REG_WIFI_BT_INFO)) & ~(BIT_BT_INT_EN);