projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 24af3202 DM |
1 | What: /sys/class/power/ds2760-battery.*/charge_now |
| 2 | Date: May 2010 | |
| 3 | KernelVersion: 2.6.35 | |
| 4 | Contact: Daniel Mack <daniel@caiaq.de> | |
| 5 | Description: | |
| 6 | This file is writeable and can be used to set the current | |
| 7 | coloumb counter value inside the battery monitor chip. This | |
| 8 | is needed for unavoidable corrections of aging batteries. | |
| 9 | A userspace daemon can monitor the battery charging logic | |
| 10 | and once the counter drops out of considerable bounds, take | |
| 11 | appropriate action. | |
| 12 | ||
| 13 | What: /sys/class/power/ds2760-battery.*/charge_full | |
| 14 | Date: May 2010 | |
| 15 | KernelVersion: 2.6.35 | |
| 16 | Contact: Daniel Mack <daniel@caiaq.de> | |
| 17 | Description: | |
| 18 | This file is writeable and can be used to set the assumed | |
| 19 | battery 'full level'. As batteries age, this value has to be | |
| 20 | amended over time. | |
| d6cc1f58 KK |
21 | |
| 22 | What: /sys/class/power_supply/max14577-charger/device/fast_charge_timer | |
| c8c5ebcc | 23 | Date: October 2014 |
| d6cc1f58 KK |
24 | KernelVersion: 3.18.0 |
| 25 | Contact: Krzysztof Kozlowski <k.kozlowski@samsung.com> | |
| 26 | Description: | |
| 27 | This entry shows and sets the maximum time the max14577 | |
| 28 | charger operates in fast-charge mode. When the timer expires | |
| 29 | the device will terminate fast-charge mode (charging current | |
| 30 | will drop to 0 A) and will trigger interrupt. | |
| 31 | ||
| 32 | Valid values: | |
| 33 | - 5, 6 or 7 (hours), | |
| 34 | - 0: disabled. | |
| 6b23becd KK |
35 | |
| 36 | What: /sys/class/power_supply/max77693-charger/device/fast_charge_timer | |
| 37 | Date: January 2015 | |
| 38 | KernelVersion: 3.19.0 | |
| 39 | Contact: Krzysztof Kozlowski <k.kozlowski@samsung.com> | |
| 40 | Description: | |
| 41 | This entry shows and sets the maximum time the max77693 | |
| 42 | charger operates in fast-charge mode. When the timer expires | |
| 43 | the device will terminate fast-charge mode (charging current | |
| 44 | will drop to 0 A) and will trigger interrupt. | |
| 45 | ||
| 46 | Valid values: | |
| 47 | - 4 - 16 (hours), step by 2 (rounded down) | |
| 48 | - 0: disabled. | |
| 49 | ||
| 50 | What: /sys/class/power_supply/max77693-charger/device/top_off_threshold_current | |
| 51 | Date: January 2015 | |
| 52 | KernelVersion: 3.19.0 | |
| 53 | Contact: Krzysztof Kozlowski <k.kozlowski@samsung.com> | |
| 54 | Description: | |
| 55 | This entry shows and sets the charging current threshold for | |
| 56 | entering top-off charging mode. When charging current in fast | |
| 57 | charge mode drops below this value, the charger will trigger | |
| 58 | interrupt and start top-off charging mode. | |
| 59 | ||
| 60 | Valid values: | |
| 61 | - 100000 - 200000 (microamps), step by 25000 (rounded down) | |
| 62 | - 200000 - 350000 (microamps), step by 50000 (rounded down) | |
| 63 | - 0: disabled. | |
| 64 | ||
| 65 | What: /sys/class/power_supply/max77693-charger/device/top_off_timer | |
| 66 | Date: January 2015 | |
| 67 | KernelVersion: 3.19.0 | |
| 68 | Contact: Krzysztof Kozlowski <k.kozlowski@samsung.com> | |
| 69 | Description: | |
| 70 | This entry shows and sets the maximum time the max77693 | |
| 71 | charger operates in top-off charge mode. When the timer expires | |
| 72 | the device will terminate top-off charge mode (charging current | |
| 73 | will drop to 0 A) and will trigger interrupt. | |
| 74 | ||
| 75 | Valid values: | |
| 76 | - 0 - 70 (minutes), step by 10 (rounded down) | |
| 6169588f AD |
77 | |
| 78 | What: /sys/class/power_supply/bq24257-charger/ovp_voltage | |
| 79 | Date: October 2015 | |
| 80 | KernelVersion: 4.4.0 | |
| 81 | Contact: Andreas Dannenberg <dannenberg@ti.com> | |
| 82 | Description: | |
| 83 | This entry configures the overvoltage protection feature of bq24257- | |
| 84 | type charger devices. This feature protects the device and other | |
| 85 | components against damage from overvoltage on the input supply. See | |
| 86 | device datasheet for details. | |
| 87 | ||
| 88 | Valid values: | |
| 89 | - 6000000, 6500000, 7000000, 8000000, 9000000, 9500000, 10000000, | |
| 90 | 10500000 (all uV) | |
| 91 | ||
| 92 | What: /sys/class/power_supply/bq24257-charger/in_dpm_voltage | |
| 93 | Date: October 2015 | |
| 94 | KernelVersion: 4.4.0 | |
| 95 | Contact: Andreas Dannenberg <dannenberg@ti.com> | |
| 96 | Description: | |
| 97 | This entry configures the input dynamic power path management voltage of | |
| 98 | bq24257-type charger devices. Once the supply drops to the configured | |
| 99 | voltage, the input current limit is reduced down to prevent the further | |
| 100 | drop of the supply. When the IC enters this mode, the charge current is | |
| 101 | lower than the set value. See device datasheet for details. | |
| 102 | ||
| 103 | Valid values: | |
| 104 | - 4200000, 4280000, 4360000, 4440000, 4520000, 4600000, 4680000, | |
| 105 | 4760000 (all uV) | |
| 106 | ||
| 107 | What: /sys/class/power_supply/bq24257-charger/high_impedance_enable | |
| 108 | Date: October 2015 | |
| 109 | KernelVersion: 4.4.0 | |
| 110 | Contact: Andreas Dannenberg <dannenberg@ti.com> | |
| 111 | Description: | |
| 112 | This entry allows enabling the high-impedance mode of bq24257-type | |
| 113 | charger devices. If enabled, it places the charger IC into low power | |
| 114 | standby mode with the switch mode controller disabled. When disabled, | |
| 115 | the charger operates normally. See device datasheet for details. | |
| 116 | ||
| 117 | Valid values: | |
| 118 | - 1: enabled | |
| 119 | - 0: disabled | |
| 120 | ||
| 121 | What: /sys/class/power_supply/bq24257-charger/sysoff_enable | |
| 122 | Date: October 2015 | |
| 123 | KernelVersion: 4.4.0 | |
| 124 | Contact: Andreas Dannenberg <dannenberg@ti.com> | |
| 125 | Description: | |
| 126 | This entry allows enabling the sysoff mode of bq24257-type charger | |
| 127 | devices. If enabled and the input is removed, the internal battery FET | |
| 128 | is turned off in order to reduce the leakage from the BAT pin to less | |
| 129 | than 1uA. Note that on some devices/systems this disconnects the battery | |
| 130 | from the system. See device datasheet for details. | |
| 131 | ||
| 132 | Valid values: | |
| 133 | - 1: enabled | |
| 134 | - 0: disabled |