cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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sysfs-class-power (22495B)


      1**General Properties**
      2
      3What:		/sys/class/power_supply/<supply_name>/manufacturer
      4Date:		May 2007
      5Contact:	linux-pm@vger.kernel.org
      6Description:
      7		Reports the name of the device manufacturer.
      8
      9		Access: Read
     10		Valid values: Represented as string
     11
     12What:		/sys/class/power_supply/<supply_name>/model_name
     13Date:		May 2007
     14Contact:	linux-pm@vger.kernel.org
     15Description:
     16		Reports the name of the device model.
     17
     18		Access: Read
     19		Valid values: Represented as string
     20
     21What:		/sys/class/power_supply/<supply_name>/serial_number
     22Date:		January 2008
     23Contact:	linux-pm@vger.kernel.org
     24Description:
     25		Reports the serial number of the device.
     26
     27		Access: Read
     28		Valid values: Represented as string
     29
     30What:		/sys/class/power_supply/<supply_name>/type
     31Date:		May 2010
     32Contact:	linux-pm@vger.kernel.org
     33Description:
     34		Describes the main type of the supply.
     35
     36		Access: Read
     37		Valid values: "Battery", "UPS", "Mains", "USB", "Wireless"
     38
     39**Battery and USB properties**
     40
     41What:		/sys/class/power_supply/<supply_name>/current_avg
     42Date:		May 2007
     43Contact:	linux-pm@vger.kernel.org
     44Description:
     45		Battery:
     46
     47		  Reports an average IBAT current reading for the battery, over
     48		  a fixed period. Normally devices will provide a fixed interval
     49		  in which they average readings to smooth out the reported
     50		  value.
     51
     52		USB:
     53
     54		  Reports an average IBUS current reading over a fixed period.
     55		  Normally devices will provide a fixed interval in which they
     56		  average readings to smooth out the reported value.
     57
     58		Access: Read
     59
     60		Valid values: Represented in microamps. Negative values are
     61		used for discharging batteries, positive values for charging
     62		batteries and for USB IBUS current.
     63
     64What:		/sys/class/power_supply/<supply_name>/current_max
     65Date:		October 2010
     66Contact:	linux-pm@vger.kernel.org
     67Description:
     68		Battery:
     69
     70		  Reports the maximum IBAT current allowed into the battery.
     71
     72		USB:
     73
     74		  Reports the maximum IBUS current the supply can support.
     75
     76		Access: Read
     77		Valid values: Represented in microamps
     78
     79What: 		/sys/class/power_supply/<supply_name>/current_now
     80Date:		May 2007
     81Contact:	linux-pm@vger.kernel.org
     82Description:
     83
     84		Battery:
     85
     86		  Reports an instant, single IBAT current reading for the
     87		  battery. This value is not averaged/smoothed.
     88
     89		  Access: Read
     90
     91		USB:
     92
     93		  Reports the IBUS current supplied now. This value is generally
     94		  read-only reporting, unless the 'online' state of the supply
     95		  is set to be programmable, in which case this value can be set
     96		  within the reported min/max range.
     97
     98		  Access: Read, Write
     99
    100		Valid values: Represented in microamps. Negative values are
    101		used for discharging batteries, positive values for charging
    102		batteries and for USB IBUS current.
    103
    104What:		/sys/class/power_supply/<supply_name>/temp
    105Date:		May 2007
    106Contact:	linux-pm@vger.kernel.org
    107Description:
    108		Battery:
    109
    110		  Reports the current TBAT battery temperature reading.
    111
    112		USB:
    113
    114		  Reports the current supply temperature reading. This would
    115		  normally be the internal temperature of the device itself
    116		  (e.g TJUNC temperature of an IC)
    117
    118		Access: Read
    119
    120		Valid values: Represented in 1/10 Degrees Celsius
    121
    122What:		/sys/class/power_supply/<supply_name>/temp_alert_max
    123Date:		July 2012
    124Contact:	linux-pm@vger.kernel.org
    125Description:
    126		Battery:
    127
    128		  Maximum TBAT temperature trip-wire value where the supply will
    129		  notify user-space of the event.
    130
    131		USB:
    132
    133		  Maximum supply temperature trip-wire value where the supply
    134		  will notify user-space of the event.
    135
    136		This is normally used for the charging scenario where
    137		user-space needs to know if the temperature has crossed an
    138		upper threshold so it can take appropriate action (e.g. warning
    139		user that the temperature is critically high, and charging has
    140		stopped).
    141
    142		Access: Read
    143
    144		Valid values: Represented in 1/10 Degrees Celsius
    145
    146What:		/sys/class/power_supply/<supply_name>/temp_alert_min
    147Date:		July 2012
    148Contact:	linux-pm@vger.kernel.org
    149Description:
    150
    151		Battery:
    152
    153		  Minimum TBAT temperature trip-wire value where the supply will
    154		  notify user-space of the event.
    155
    156		USB:
    157
    158		  Minimum supply temperature trip-wire value where the supply
    159		  will notify user-space of the event.
    160
    161		This is normally used for the charging scenario where user-space
    162		needs to know if the temperature has crossed a lower threshold
    163		so it can take appropriate action (e.g. warning user that
    164		temperature level is high, and charging current has been
    165		reduced accordingly to remedy the situation).
    166
    167		Access: Read
    168
    169		Valid values: Represented in 1/10 Degrees Celsius
    170
    171What:		/sys/class/power_supply/<supply_name>/temp_max
    172Date:		July 2014
    173Contact:	linux-pm@vger.kernel.org
    174Description:
    175		Battery:
    176
    177		  Reports the maximum allowed TBAT battery temperature for
    178		  charging.
    179
    180		USB:
    181
    182		  Reports the maximum allowed supply temperature for operation.
    183
    184		Access: Read
    185
    186		Valid values: Represented in 1/10 Degrees Celsius
    187
    188What:		/sys/class/power_supply/<supply_name>/temp_min
    189Date:		July 2014
    190Contact:	linux-pm@vger.kernel.org
    191Description:
    192		Battery:
    193
    194		  Reports the minimum allowed TBAT battery temperature for
    195		  charging.
    196
    197		USB:
    198
    199		  Reports the minimum allowed supply temperature for operation.
    200
    201		Access: Read
    202
    203		Valid values: Represented in 1/10 Degrees Celsius
    204
    205What:		/sys/class/power_supply/<supply_name>/voltage_max,
    206Date:		January 2008
    207Contact:	linux-pm@vger.kernel.org
    208Description:
    209		Battery:
    210
    211		  Reports the maximum safe VBAT voltage permitted for the
    212		  battery, during charging.
    213
    214		USB:
    215
    216		  Reports the maximum VBUS voltage the supply can support.
    217
    218		Access: Read
    219
    220		Valid values: Represented in microvolts
    221
    222What:		/sys/class/power_supply/<supply_name>/voltage_min,
    223Date:		January 2008
    224Contact:	linux-pm@vger.kernel.org
    225Description:
    226		Battery:
    227
    228		  Reports the minimum safe VBAT voltage permitted for the
    229		  battery, during discharging.
    230
    231		USB:
    232
    233		  Reports the minimum VBUS voltage the supply can support.
    234
    235		Access: Read
    236
    237		Valid values: Represented in microvolts
    238
    239What:		/sys/class/power_supply/<supply_name>/voltage_now,
    240Date:		May 2007
    241Contact:	linux-pm@vger.kernel.org
    242Description:
    243		Battery:
    244
    245		  Reports an instant, single VBAT voltage reading for the
    246		  battery. This value is not averaged/smoothed.
    247
    248		  Access: Read
    249
    250		USB:
    251
    252		  Reports the VBUS voltage supplied now. This value is generally
    253		  read-only reporting, unless the 'online' state of the supply
    254		  is set to be programmable, in which case this value can be set
    255		  within the reported min/max range.
    256
    257		  Access: Read, Write
    258
    259		Valid values: Represented in microvolts
    260
    261**Battery Properties**
    262
    263What:		/sys/class/power_supply/<supply_name>/capacity
    264Date:		May 2007
    265Contact:	linux-pm@vger.kernel.org
    266Description:
    267		Fine grain representation of battery capacity.
    268
    269		Access: Read
    270
    271		Valid values: 0 - 100 (percent)
    272
    273What:		/sys/class/power_supply/<supply_name>/capacity_alert_max
    274Date:		July 2012
    275Contact:	linux-pm@vger.kernel.org
    276Description:
    277		Maximum battery capacity trip-wire value where the supply will
    278		notify user-space of the event. This is normally used for the
    279		battery discharging scenario where user-space needs to know the
    280		battery has dropped to an upper level so it can take
    281		appropriate action (e.g. warning user that battery level is
    282		low).
    283
    284		Access: Read, Write
    285
    286		Valid values: 0 - 100 (percent)
    287
    288What:		/sys/class/power_supply/<supply_name>/capacity_alert_min
    289Date:		July 2012
    290Contact:	linux-pm@vger.kernel.org
    291Description:
    292		Minimum battery capacity trip-wire value where the supply will
    293		notify user-space of the event. This is normally used for the
    294		battery discharging scenario where user-space needs to know the
    295		battery has dropped to a lower level so it can take
    296		appropriate action (e.g. warning user that battery level is
    297		critically low).
    298
    299		Access: Read, Write
    300
    301		Valid values: 0 - 100 (percent)
    302
    303What:		/sys/class/power_supply/<supply_name>/capacity_error_margin
    304Date:		April 2019
    305Contact:	linux-pm@vger.kernel.org
    306Description:
    307		Battery capacity measurement becomes unreliable without
    308		recalibration. This values provides the maximum error
    309		margin expected to exist by the fuel gauge in percent.
    310		Values close to 0% will be returned after (re-)calibration
    311		has happened. Over time the error margin will increase.
    312		100% means, that the capacity related values are basically
    313		completely useless.
    314
    315		Access: Read
    316
    317		Valid values: 0 - 100 (percent)
    318
    319What:		/sys/class/power_supply/<supply_name>/capacity_level
    320Date:		June 2009
    321Contact:	linux-pm@vger.kernel.org
    322Description:
    323		Coarse representation of battery capacity.
    324
    325		Access: Read
    326
    327		Valid values:
    328			      "Unknown", "Critical", "Low", "Normal", "High",
    329			      "Full"
    330
    331What:		/sys/class/power_supply/<supply_name>/charge_control_limit
    332Date:		Oct 2012
    333Contact:	linux-pm@vger.kernel.org
    334Description:
    335		Maximum allowable charging current. Used for charge rate
    336		throttling for thermal cooling or improving battery health.
    337
    338		Access: Read, Write
    339
    340		Valid values: Represented in microamps
    341
    342What:		/sys/class/power_supply/<supply_name>/charge_control_limit_max
    343Date:		Oct 2012
    344Contact:	linux-pm@vger.kernel.org
    345Description:
    346		Maximum legal value for the charge_control_limit property.
    347
    348		Access: Read
    349
    350		Valid values: Represented in microamps
    351
    352What:		/sys/class/power_supply/<supply_name>/charge_control_start_threshold
    353Date:		April 2019
    354Contact:	linux-pm@vger.kernel.org
    355Description:
    356		Represents a battery percentage level, below which charging will
    357		begin.
    358
    359		Access: Read, Write
    360		Valid values: 0 - 100 (percent)
    361
    362What:		/sys/class/power_supply/<supply_name>/charge_control_end_threshold
    363Date:		April 2019
    364Contact:	linux-pm@vger.kernel.org
    365Description:
    366		Represents a battery percentage level, above which charging will
    367		stop.
    368
    369		Access: Read, Write
    370
    371		Valid values: 0 - 100 (percent)
    372
    373What:		/sys/class/power_supply/<supply_name>/charge_type
    374Date:		July 2009
    375Contact:	linux-pm@vger.kernel.org
    376Description:
    377		Represents the type of charging currently being applied to the
    378		battery. "Trickle", "Fast", and "Standard" all mean different
    379		charging speeds. "Adaptive" means that the charger uses some
    380		algorithm to adjust the charge rate dynamically, without
    381		any user configuration required. "Custom" means that the charger
    382		uses the charge_control_* properties as configuration for some
    383		different algorithm. "Long Life" means the charger reduces its
    384		charging rate in order to prolong the battery health. "Bypass"
    385		means the charger bypasses the charging path around the
    386		integrated converter allowing for a "smart" wall adaptor to
    387		perform the power conversion externally.
    388
    389		Access: Read, Write
    390
    391		Valid values:
    392			      "Unknown", "N/A", "Trickle", "Fast", "Standard",
    393			      "Adaptive", "Custom", "Long Life", "Bypass"
    394
    395What:		/sys/class/power_supply/<supply_name>/charge_term_current
    396Date:		July 2014
    397Contact:	linux-pm@vger.kernel.org
    398Description:
    399		Reports the charging current value which is used to determine
    400		when the battery is considered full and charging should end.
    401
    402		Access: Read
    403
    404		Valid values: Represented in microamps
    405
    406What:		/sys/class/power_supply/<supply_name>/health
    407Date:		May 2007
    408Contact:	linux-pm@vger.kernel.org
    409Description:
    410		Reports the health of the battery or battery side of charger
    411		functionality.
    412
    413		Access: Read
    414
    415		Valid values:
    416			      "Unknown", "Good", "Overheat", "Dead",
    417			      "Over voltage", "Unspecified failure", "Cold",
    418			      "Watchdog timer expire", "Safety timer expire",
    419			      "Over current", "Calibration required", "Warm",
    420			      "Cool", "Hot", "No battery"
    421
    422What:		/sys/class/power_supply/<supply_name>/precharge_current
    423Date:		June 2017
    424Contact:	linux-pm@vger.kernel.org
    425Description:
    426		Reports the charging current applied during pre-charging phase
    427		for a battery charge cycle.
    428
    429		Access: Read
    430
    431		Valid values: Represented in microamps
    432
    433What:		/sys/class/power_supply/<supply_name>/present
    434Date:		May 2007
    435Contact:	linux-pm@vger.kernel.org
    436Description:
    437		Reports whether a battery is present or not in the system.
    438
    439		Access: Read
    440
    441		Valid values:
    442
    443			== =======
    444			0: Absent
    445			1: Present
    446			== =======
    447
    448What:		/sys/class/power_supply/<supply_name>/status
    449Date:		May 2007
    450Contact:	linux-pm@vger.kernel.org
    451Description:
    452		Represents the charging status of the battery. Normally this
    453		is read-only reporting although for some supplies this can be
    454		used to enable/disable charging to the battery.
    455
    456		Access: Read, Write
    457
    458		Valid values:
    459			      "Unknown", "Charging", "Discharging",
    460			      "Not charging", "Full"
    461
    462What:		/sys/class/power_supply/<supply_name>/charge_behaviour
    463Date:		November 2021
    464Contact:	linux-pm@vger.kernel.org
    465Description:
    466		Represents the charging behaviour.
    467
    468		Access: Read, Write
    469
    470		Valid values:
    471			================ ====================================
    472			auto:            Charge normally, respect thresholds
    473			inhibit-charge:  Do not charge while AC is attached
    474			force-discharge: Force discharge while AC is attached
    475			================ ====================================
    476
    477What:		/sys/class/power_supply/<supply_name>/technology
    478Date:		May 2007
    479Contact:	linux-pm@vger.kernel.org
    480Description:
    481		Describes the battery technology supported by the supply.
    482
    483		Access: Read
    484
    485		Valid values:
    486			      "Unknown", "NiMH", "Li-ion", "Li-poly", "LiFe",
    487			      "NiCd", "LiMn"
    488
    489
    490What:		/sys/class/power_supply/<supply_name>/voltage_avg,
    491Date:		May 2007
    492Contact:	linux-pm@vger.kernel.org
    493Description:
    494		Reports an average VBAT voltage reading for the battery, over a
    495		fixed period. Normally devices will provide a fixed interval in
    496		which they average readings to smooth out the reported value.
    497
    498		Access: Read
    499
    500		Valid values: Represented in microvolts
    501
    502What:		/sys/class/power_supply/<supply_name>/cycle_count
    503Date:		January 2010
    504Contact:	linux-pm@vger.kernel.org
    505Description:
    506		Reports the number of full charge + discharge cycles the
    507		battery has undergone.
    508
    509		Access: Read
    510
    511		Valid values:
    512			Integer > 0: representing full cycles
    513			Integer = 0: cycle_count info is not available
    514
    515**USB Properties**
    516
    517What:		/sys/class/power_supply/<supply_name>/input_current_limit
    518Date:		July 2014
    519Contact:	linux-pm@vger.kernel.org
    520Description:
    521		Details the incoming IBUS current limit currently set in the
    522		supply. Normally this is configured based on the type of
    523		connection made (e.g. A configured SDP should output a maximum
    524		of 500mA so the input current limit is set to the same value).
    525		Use preferably input_power_limit, and for problems that can be
    526		solved using power limit use input_current_limit.
    527
    528		Access: Read, Write
    529
    530		Valid values: Represented in microamps
    531
    532What:		/sys/class/power_supply/<supply_name>/input_voltage_limit
    533Date:		May 2019
    534Contact:	linux-pm@vger.kernel.org
    535Description:
    536		This entry configures the incoming VBUS voltage limit currently
    537		set in the supply. Normally this is configured based on
    538		system-level knowledge or user input (e.g. This is part of the
    539		Pixel C's thermal management strategy to effectively limit the
    540		input power to 5V when the screen is on to meet Google's skin
    541		temperature targets). Note that this feature should not be
    542		used for safety critical things.
    543		Use preferably input_power_limit, and for problems that can be
    544		solved using power limit use input_voltage_limit.
    545
    546		Access: Read, Write
    547
    548		Valid values: Represented in microvolts
    549
    550What:		/sys/class/power_supply/<supply_name>/input_power_limit
    551Date:		May 2019
    552Contact:	linux-pm@vger.kernel.org
    553Description:
    554		This entry configures the incoming power limit currently set
    555		in the supply. Normally this is configured based on
    556		system-level knowledge or user input. Use preferably this
    557		feature to limit the incoming power and use current/voltage
    558		limit only for problems that can be solved using power limit.
    559
    560		Access: Read, Write
    561
    562		Valid values: Represented in microwatts
    563
    564What:		/sys/class/power_supply/<supply_name>/online,
    565Date:		May 2007
    566Contact:	linux-pm@vger.kernel.org
    567Description:
    568		Indicates if VBUS is present for the supply. When the supply is
    569		online, and the supply allows it, then it's possible to switch
    570		between online states (e.g. Fixed -> Programmable for a PD_PPS
    571		USB supply so voltage and current can be controlled).
    572
    573		Access: Read, Write
    574
    575		Valid values:
    576
    577			== ==================================================
    578			0: Offline
    579			1: Online Fixed - Fixed Voltage Supply
    580			2: Online Programmable - Programmable Voltage Supply
    581			== ==================================================
    582
    583What: 		/sys/class/power_supply/<supply_name>/usb_type
    584Date:		March 2018
    585Contact:	linux-pm@vger.kernel.org
    586Description:
    587		Reports what type of USB connection is currently active for
    588		the supply, for example it can show if USB-PD capable source
    589		is attached.
    590
    591		Access: Read-Only
    592
    593		Valid values:
    594			      "Unknown", "SDP", "DCP", "CDP", "ACA", "C", "PD",
    595			      "PD_DRP", "PD_PPS", "BrickID"
    596
    597**Device Specific Properties**
    598
    599What:		/sys/class/power/ds2760-battery.*/charge_now
    600Date:		May 2010
    601KernelVersion:	2.6.35
    602Contact:	Daniel Mack <daniel@caiaq.de>
    603Description:
    604		This file is writeable and can be used to set the current
    605		coloumb counter value inside the battery monitor chip. This
    606		is needed for unavoidable corrections of aging batteries.
    607		A userspace daemon can monitor the battery charging logic
    608		and once the counter drops out of considerable bounds, take
    609		appropriate action.
    610
    611What:		/sys/class/power/ds2760-battery.*/charge_full
    612Date:		May 2010
    613KernelVersion:	2.6.35
    614Contact:	Daniel Mack <daniel@caiaq.de>
    615Description:
    616		This file is writeable and can be used to set the assumed
    617		battery 'full level'. As batteries age, this value has to be
    618		amended over time.
    619
    620What:		/sys/class/power_supply/max14577-charger/device/fast_charge_timer
    621Date:		October 2014
    622KernelVersion:	3.18.0
    623Contact:	Krzysztof Kozlowski <krzk@kernel.org>
    624Description:
    625		This entry shows and sets the maximum time the max14577
    626		charger operates in fast-charge mode. When the timer expires
    627		the device will terminate fast-charge mode (charging current
    628		will drop to 0 A) and will trigger interrupt.
    629
    630		Valid values:
    631
    632		- 5, 6 or 7 (hours),
    633		- 0: disabled.
    634
    635What:		/sys/class/power_supply/max77693-charger/device/fast_charge_timer
    636Date:		January 2015
    637KernelVersion:	3.19.0
    638Contact:	Krzysztof Kozlowski <krzk@kernel.org>
    639Description:
    640		This entry shows and sets the maximum time the max77693
    641		charger operates in fast-charge mode. When the timer expires
    642		the device will terminate fast-charge mode (charging current
    643		will drop to 0 A) and will trigger interrupt.
    644
    645		Valid values:
    646
    647		- 4 - 16 (hours), step by 2 (rounded down)
    648		- 0: disabled.
    649
    650What:		/sys/class/power_supply/max77693-charger/device/top_off_threshold_current
    651Date:		January 2015
    652KernelVersion:	3.19.0
    653Contact:	Krzysztof Kozlowski <krzk@kernel.org>
    654Description:
    655		This entry shows and sets the charging current threshold for
    656		entering top-off charging mode. When charging current in fast
    657		charge mode drops below this value, the charger will trigger
    658		interrupt and start top-off charging mode.
    659
    660		Valid values:
    661
    662		- 100000 - 200000 (microamps), step by 25000 (rounded down)
    663		- 200000 - 350000 (microamps), step by 50000 (rounded down)
    664		- 0: disabled.
    665
    666What:		/sys/class/power_supply/max77693-charger/device/top_off_timer
    667Date:		January 2015
    668KernelVersion:	3.19.0
    669Contact:	Krzysztof Kozlowski <krzk@kernel.org>
    670Description:
    671		This entry shows and sets the maximum time the max77693
    672		charger operates in top-off charge mode. When the timer expires
    673		the device will terminate top-off charge mode (charging current
    674		will drop to 0 A) and will trigger interrupt.
    675
    676		Valid values:
    677
    678		- 0 - 70 (minutes), step by 10 (rounded down)
    679
    680What:		/sys/class/power_supply/bq24257-charger/ovp_voltage
    681Date:		October 2015
    682KernelVersion:	4.4.0
    683Contact:	Andreas Dannenberg <dannenberg@ti.com>
    684Description:
    685		This entry configures the overvoltage protection feature of bq24257-
    686		type charger devices. This feature protects the device and other
    687		components against damage from overvoltage on the input supply. See
    688		device datasheet for details.
    689
    690		Valid values:
    691
    692		- 6000000, 6500000, 7000000, 8000000, 9000000, 9500000, 10000000,
    693		  10500000 (all uV)
    694
    695What:		/sys/class/power_supply/bq24257-charger/in_dpm_voltage
    696Date:		October 2015
    697KernelVersion:	4.4.0
    698Contact:	Andreas Dannenberg <dannenberg@ti.com>
    699Description:
    700		This entry configures the input dynamic power path management voltage of
    701		bq24257-type charger devices. Once the supply drops to the configured
    702		voltage, the input current limit is reduced down to prevent the further
    703		drop of the supply. When the IC enters this mode, the charge current is
    704		lower than the set value. See device datasheet for details.
    705
    706		Valid values:
    707
    708		- 4200000, 4280000, 4360000, 4440000, 4520000, 4600000, 4680000,
    709		  4760000 (all uV)
    710
    711What:		/sys/class/power_supply/bq24257-charger/high_impedance_enable
    712Date:		October 2015
    713KernelVersion:	4.4.0
    714Contact:	Andreas Dannenberg <dannenberg@ti.com>
    715Description:
    716		This entry allows enabling the high-impedance mode of bq24257-type
    717		charger devices. If enabled, it places the charger IC into low power
    718		standby mode with the switch mode controller disabled. When disabled,
    719		the charger operates normally. See device datasheet for details.
    720
    721		Valid values:
    722
    723		- 1: enabled
    724		- 0: disabled
    725
    726What:		/sys/class/power_supply/bq24257-charger/sysoff_enable
    727Date:		October 2015
    728KernelVersion:	4.4.0
    729Contact:	Andreas Dannenberg <dannenberg@ti.com>
    730Description:
    731		This entry allows enabling the sysoff mode of bq24257-type charger
    732		devices. If enabled and the input is removed, the internal battery FET
    733		is turned off in order to reduce the leakage from the BAT pin to less
    734		than 1uA. Note that on some devices/systems this disconnects the battery
    735		from the system. See device datasheet for details.
    736
    737		Valid values:
    738
    739		- 1: enabled
    740		- 0: disabled
    741
    742What:		/sys/class/power_supply/<supply_name>/manufacture_year
    743Date:		January 2020
    744Contact:	linux-pm@vger.kernel.org
    745Description:
    746		Reports the year (following Gregorian calendar) when the device has been
    747		manufactured.
    748
    749		Access: Read
    750
    751		Valid values: Reported as integer
    752
    753What:		/sys/class/power_supply/<supply_name>/manufacture_month
    754Date:		January 2020
    755Contact:	linux-pm@vger.kernel.org
    756Description:
    757		Reports the month when the device has been manufactured.
    758
    759		Access: Read
    760
    761		Valid values: 1-12
    762
    763What:		/sys/class/power_supply/<supply_name>/manufacture_day
    764Date:		January 2020
    765Contact:	linux-pm@vger.kernel.org
    766Description:
    767		Reports the day of month when the device has been manufactured.
    768
    769		Access: Read
    770		Valid values: 1-31