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- What: /sys/class/power/ds2760-battery.*/charge_now
- Date: May 2010
- KernelVersion: 2.6.35
- Contact: Daniel Mack <daniel@caiaq.de>
- 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 <daniel@caiaq.de>
- 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 <k.kozlowski@samsung.com>
- 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 <k.kozlowski@samsung.com>
- 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 <k.kozlowski@samsung.com>
- 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 <k.kozlowski@samsung.com>
- 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 <dannenberg@ti.com>
- 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 <dannenberg@ti.com>
- 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 <dannenberg@ti.com>
- 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 <dannenberg@ti.com>
- 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
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