RK3288 手动设置电池电量
参考:[RK3288][Android6.0] 调试笔记 --- 电池电量一直显示100%
系统版本:RK3288 android 5.1 (与参考的变量和宏有点区别)
设备没有电池,在进行Fota升级时,提示电量不能低于30%,外接电源,可是读出来的电量是0%,无法进行升级,只能手动设置电池电量。
$ adb shell dumpsys battery //通过adb查询电池信息
Current Battery Service state:
AC powered: false
USB powered: false
Wireless powered: false
status: 1
health: 1
present: true
level: 0 //电池电量
scale: 100
voltage: 0
temperature: 0
technology:
diff --git a/system/core/healthd/BatteryMonitor.cpp b/system/core/healthd/BatteryMonitor.cpp old mode 100644 new mode 100755 index d317b28..6b37dee --- a/system/core/healthd/BatteryMonitor.cpp +++ b/system/core/healthd/BatteryMonitor.cpp @@ -35,7 +35,7 @@ #define POWER_SUPPLY_SUBSYSTEM "power_supply" #define POWER_SUPPLY_SYSFS_PATH "/sys/class/" POWER_SUPPLY_SUBSYSTEM -#define FAKE_BATTERY_CAPACITY 42 +#define FAKE_BATTERY_CAPACITY 100 #define FAKE_BATTERY_TEMPERATURE 424 namespace android { @@ -513,8 +513,14 @@ void BatteryMonitor::init(struct healthd_config *hc) { closedir(dir); } - if (!mChargerNames.size()) + if (!mChargerNames.size()) { KLOG_ERROR(LOG_TAG, "No charger supplies found\n"); + /*------------电池电量一直显示100%------------*/ + mBatteryFixedCapacity = FAKE_BATTERY_CAPACITY; //电量 level + mBatteryFixedTemperature = FAKE_BATTERY_TEMPERATURE; //温度 temperature + mBatteryDevicePresent = true; + /*------------------------------------------------*/ + } if (!mBatteryDevicePresent) { KLOG_WARNING(LOG_TAG, "No battery devices found\n"); hc->periodic_chores_interval_fast = -1;
$ adb shell dumpsys battery
Current Battery Service state:
AC powered: false
USB powered: false
Wireless powered: false
status: 1
health: 1
present: true
level: 100 //电池电量
scale: 100
voltage: 0
temperature: 424
technology: