What: /sys/class/power/ds2760-battery.*/charge_now Date: May 2010 KernelVersion: 2.6.35 Contact: Daniel Mack Description: This file is writeable and can be used to set the current coloumb counter value inside the battery monitor chip. This is needed for unavoidable corrections of aging batteries. A userspace daemon can monitor the battery charging logic and once the counter drops out of considerable bounds, take appropriate action. What: /sys/class/power/ds2760-battery.*/charge_full Date: May 2010 KernelVersion: 2.6.35 Contact: Daniel Mack Description: This file is writeable and can be used to set the assumed battery 'full level'. As batteries age, this value has to be amended over time. What: /sys/class/power_supply/max14577-charger/device/fast_charge_timer Date: October 2014 KernelVersion: 3.18.0 Contact: Krzysztof Kozlowski Description: This entry shows and sets the maximum time the max14577 charger operates in fast-charge mode. When the timer expires the device will terminate fast-charge mode (charging current will drop to 0 A) and will trigger interrupt. Valid values: - 5, 6 or 7 (hours), - 0: disabled. What: /sys/class/power_supply/max77693-charger/device/fast_charge_timer Date: January 2015 KernelVersion: 3.19.0 Contact: Krzysztof Kozlowski Description: This entry shows and sets the maximum time the max77693 charger operates in fast-charge mode. When the timer expires the device will terminate fast-charge mode (charging current will drop to 0 A) and will trigger interrupt. Valid values: - 4 - 16 (hours), step by 2 (rounded down) - 0: disabled. What: /sys/class/power_supply/max77693-charger/device/top_off_threshold_current Date: January 2015 KernelVersion: 3.19.0 Contact: Krzysztof Kozlowski Description: This entry shows and sets the charging current threshold for entering top-off charging mode. When charging current in fast charge mode drops below this value, the charger will trigger interrupt and start top-off charging mode. Valid values: - 100000 - 200000 (microamps), step by 25000 (rounded down) - 200000 - 350000 (microamps), step by 50000 (rounded down) - 0: disabled. What: /sys/class/power_supply/max77693-charger/device/top_off_timer Date: January 2015 KernelVersion: 3.19.0 Contact: Krzysztof Kozlowski Description: This entry shows and sets the maximum time the max77693 charger operates in top-off charge mode. When the timer expires the device will terminate top-off charge mode (charging current will drop to 0 A) and will trigger interrupt. Valid values: - 0 - 70 (minutes), step by 10 (rounded down) What: /sys/class/power_supply/bq24257-charger/ovp_voltage Date: October 2015 KernelVersion: 4.4.0 Contact: Andreas Dannenberg Description: This entry configures the overvoltage protection feature of bq24257- type charger devices. This feature protects the device and other components against damage from overvoltage on the input supply. See device datasheet for details. Valid values: - 6000000, 6500000, 7000000, 8000000, 9000000, 9500000, 10000000, 10500000 (all uV) What: /sys/class/power_supply/bq24257-charger/in_dpm_voltage Date: October 2015 KernelVersion: 4.4.0 Contact: Andreas Dannenberg Description: This entry configures the input dynamic power path management voltage of bq24257-type charger devices. Once the supply drops to the configured voltage, the input current limit is reduced down to prevent the further drop of the supply. When the IC enters this mode, the charge current is lower than the set value. See device datasheet for details. Valid values: - 4200000, 4280000, 4360000, 4440000, 4520000, 4600000, 4680000, 4760000 (all uV) What: /sys/class/power_supply/bq24257-charger/high_impedance_enable Date: October 2015 KernelVersion: 4.4.0 Contact: Andreas Dannenberg Description: This entry allows enabling the high-impedance mode of bq24257-type charger devices. If enabled, it places the charger IC into low power standby mode with the switch mode controller disabled. When disabled, the charger operates normally. See device datasheet for details. Valid values: - 1: enabled - 0: disabled What: /sys/class/power_supply/bq24257-charger/sysoff_enable Date: October 2015 KernelVersion: 4.4.0 Contact: Andreas Dannenberg Description: This entry allows enabling the sysoff mode of bq24257-type charger devices. If enabled and the input is removed, the internal battery FET is turned off in order to reduce the leakage from the BAT pin to less than 1uA. Note that on some devices/systems this disconnects the battery from the system. See device datasheet for details. Valid values: - 1: enabled - 0: disabled