0001 What: /sys/class/hwmon/hwmonX/name
0002 Description:
0003 The chip name.
0004 This should be a short, lowercase string, not containing
0005 whitespace, dashes, or the wildcard character '*'.
0006 This attribute represents the chip name. It is the only
0007 mandatory attribute.
0008 I2C devices get this attribute created automatically.
0009
0010 RO
0011
0012 What: /sys/class/hwmon/hwmonX/label
0013 Description:
0014 A descriptive label that allows to uniquely identify a
0015 device within the system.
0016 The contents of the label are free-form.
0017
0018 RO
0019
0020 What: /sys/class/hwmon/hwmonX/update_interval
0021 Description:
0022 The interval at which the chip will update readings.
0023 Unit: millisecond
0024
0025 RW
0026
0027 Some devices have a variable update rate or interval.
0028 This attribute can be used to change it to the desired value.
0029
0030 What: /sys/class/hwmon/hwmonX/inY_min
0031 Description:
0032 Voltage min value.
0033
0034 Unit: millivolt
0035
0036 RW
0037
0038 What: /sys/class/hwmon/hwmonX/inY_lcrit
0039 Description:
0040 Voltage critical min value.
0041
0042 Unit: millivolt
0043
0044 RW
0045
0046 If voltage drops to or below this limit, the system may
0047 take drastic action such as power down or reset. At the very
0048 least, it should report a fault.
0049
0050 What: /sys/class/hwmon/hwmonX/inY_max
0051 Description:
0052 Voltage max value.
0053
0054 Unit: millivolt
0055
0056 RW
0057
0058 What: /sys/class/hwmon/hwmonX/inY_crit
0059 Description:
0060 Voltage critical max value.
0061
0062 Unit: millivolt
0063
0064 RW
0065
0066 If voltage reaches or exceeds this limit, the system may
0067 take drastic action such as power down or reset. At the very
0068 least, it should report a fault.
0069
0070 What: /sys/class/hwmon/hwmonX/inY_input
0071 Description:
0072 Voltage input value.
0073
0074 Unit: millivolt
0075
0076 RO
0077
0078 Voltage measured on the chip pin.
0079
0080 Actual voltage depends on the scaling resistors on the
0081 motherboard, as recommended in the chip datasheet.
0082
0083 This varies by chip and by motherboard.
0084 Because of this variation, values are generally NOT scaled
0085 by the chip driver, and must be done by the application.
0086 However, some drivers (notably lm87 and via686a)
0087 do scale, because of internal resistors built into a chip.
0088 These drivers will output the actual voltage. Rule of
0089 thumb: drivers should report the voltage values at the
0090 "pins" of the chip.
0091
0092 What: /sys/class/hwmon/hwmonX/inY_average
0093 Description:
0094 Average voltage
0095
0096 Unit: millivolt
0097
0098 RO
0099
0100 What: /sys/class/hwmon/hwmonX/inY_lowest
0101 Description:
0102 Historical minimum voltage
0103
0104 Unit: millivolt
0105
0106 RO
0107
0108 What: /sys/class/hwmon/hwmonX/inY_highest
0109 Description:
0110 Historical maximum voltage
0111
0112 Unit: millivolt
0113
0114 RO
0115
0116 What: /sys/class/hwmon/hwmonX/inY_reset_history
0117 Description:
0118 Reset inX_lowest and inX_highest
0119
0120 WO
0121
0122 What: /sys/class/hwmon/hwmonX/in_reset_history
0123 Description:
0124 Reset inX_lowest and inX_highest for all sensors
0125
0126 WO
0127
0128 What: /sys/class/hwmon/hwmonX/inY_label
0129 Description:
0130 Suggested voltage channel label.
0131
0132 Text string
0133
0134 Should only be created if the driver has hints about what
0135 this voltage channel is being used for, and user-space
0136 doesn't. In all other cases, the label is provided by
0137 user-space.
0138
0139 RO
0140
0141 What: /sys/class/hwmon/hwmonX/inY_enable
0142 Description:
0143 Enable or disable the sensors.
0144
0145 When disabled the sensor read will return -ENODATA.
0146
0147 - 1: Enable
0148 - 0: Disable
0149
0150 RW
0151
0152 What: /sys/class/hwmon/hwmonX/cpuY_vid
0153 Description:
0154 CPU core reference voltage.
0155
0156 Unit: millivolt
0157
0158 RO
0159
0160 Not always correct.
0161
0162 What: /sys/class/hwmon/hwmonX/vrm
0163 Description:
0164 Voltage Regulator Module version number.
0165
0166 RW (but changing it should no more be necessary)
0167
0168 Originally the VRM standard version multiplied by 10, but now
0169 an arbitrary number, as not all standards have a version
0170 number.
0171
0172 Affects the way the driver calculates the CPU core reference
0173 voltage from the vid pins.
0174
0175 What: /sys/class/hwmon/hwmonX/inY_rated_min
0176 Description:
0177 Minimum rated voltage.
0178
0179 Unit: millivolt
0180
0181 RO
0182
0183 What: /sys/class/hwmon/hwmonX/inY_rated_max
0184 Description:
0185 Maximum rated voltage.
0186
0187 Unit: millivolt
0188
0189 RO
0190
0191 What: /sys/class/hwmon/hwmonX/fanY_min
0192 Description:
0193 Fan minimum value
0194
0195 Unit: revolution/min (RPM)
0196
0197 RW
0198
0199 What: /sys/class/hwmon/hwmonX/fanY_max
0200 Description:
0201 Fan maximum value
0202
0203 Unit: revolution/min (RPM)
0204
0205 Only rarely supported by the hardware.
0206 RW
0207
0208 What: /sys/class/hwmon/hwmonX/fanY_input
0209 Description:
0210 Fan input value.
0211
0212 Unit: revolution/min (RPM)
0213
0214 RO
0215
0216 What: /sys/class/hwmon/hwmonX/fanY_div
0217 Description:
0218 Fan divisor.
0219
0220 Integer value in powers of two (1, 2, 4, 8, 16, 32, 64, 128).
0221
0222 RW
0223
0224 Some chips only support values 1, 2, 4 and 8.
0225 Note that this is actually an internal clock divisor, which
0226 affects the measurable speed range, not the read value.
0227
0228 What: /sys/class/hwmon/hwmonX/fanY_pulses
0229 Description:
0230 Number of tachometer pulses per fan revolution.
0231
0232 Integer value, typically between 1 and 4.
0233
0234 RW
0235
0236 This value is a characteristic of the fan connected to the
0237 device's input, so it has to be set in accordance with the fan
0238 model.
0239
0240 Should only be created if the chip has a register to configure
0241 the number of pulses. In the absence of such a register (and
0242 thus attribute) the value assumed by all devices is 2 pulses
0243 per fan revolution.
0244
0245 What: /sys/class/hwmon/hwmonX/fanY_target
0246 Description:
0247 Desired fan speed
0248
0249 Unit: revolution/min (RPM)
0250
0251 RW
0252
0253 Only makes sense if the chip supports closed-loop fan speed
0254 control based on the measured fan speed.
0255
0256 What: /sys/class/hwmon/hwmonX/fanY_label
0257 Description:
0258 Suggested fan channel label.
0259
0260 Text string
0261
0262 Should only be created if the driver has hints about what
0263 this fan channel is being used for, and user-space doesn't.
0264 In all other cases, the label is provided by user-space.
0265
0266 RO
0267
0268 What: /sys/class/hwmon/hwmonX/fanY_enable
0269 Description:
0270 Enable or disable the sensors.
0271
0272 When disabled the sensor read will return -ENODATA.
0273
0274 - 1: Enable
0275 - 0: Disable
0276
0277 RW
0278
0279 What: /sys/class/hwmon/hwmonX/pwmY
0280 Description:
0281 Pulse width modulation fan control.
0282
0283 Integer value in the range 0 to 255
0284
0285 RW
0286
0287 255 is max or 100%.
0288
0289 What: /sys/class/hwmon/hwmonX/pwmY_enable
0290 Description:
0291 Fan speed control method:
0292
0293 - 0: no fan speed control (i.e. fan at full speed)
0294 - 1: manual fan speed control enabled (using `pwmY`)
0295 - 2+: automatic fan speed control enabled
0296
0297 Check individual chip documentation files for automatic mode
0298 details.
0299
0300 RW
0301
0302 What: /sys/class/hwmon/hwmonX/pwmY_mode
0303 Description:
0304 - 0: DC mode (direct current)
0305 - 1: PWM mode (pulse-width modulation)
0306
0307 RW
0308
0309 What: /sys/class/hwmon/hwmonX/pwmY_freq
0310 Description:
0311 Base PWM frequency in Hz.
0312
0313 Only possibly available when pwmN_mode is PWM, but not always
0314 present even then.
0315
0316 RW
0317
0318 What: /sys/class/hwmon/hwmonX/pwmY_auto_channels_temp
0319 Description:
0320 Select which temperature channels affect this PWM output in
0321 auto mode.
0322
0323 Bitfield, 1 is temp1, 2 is temp2, 4 is temp3 etc...
0324 Which values are possible depend on the chip used.
0325
0326 RW
0327
0328 What: /sys/class/hwmon/hwmonX/pwmY_auto_pointZ_pwm
0329 What: /sys/class/hwmon/hwmonX/pwmY_auto_pointZ_temp
0330 What: /sys/class/hwmon/hwmonX/pwmY_auto_pointZ_temp_hyst
0331 Description:
0332 Define the PWM vs temperature curve.
0333
0334 Number of trip points is chip-dependent. Use this for chips
0335 which associate trip points to PWM output channels.
0336
0337 RW
0338
0339 What: /sys/class/hwmon/hwmonX/tempY_auto_pointZ_pwm
0340 What: /sys/class/hwmon/hwmonX/tempY_auto_pointZ_temp
0341 What: /sys/class/hwmon/hwmonX/tempY_auto_pointZ_temp_hyst
0342 Description:
0343 Define the PWM vs temperature curve.
0344
0345 Number of trip points is chip-dependent. Use this for chips
0346 which associate trip points to temperature channels.
0347
0348 RW
0349
0350 What: /sys/class/hwmon/hwmonX/tempY_type
0351 Description:
0352 Sensor type selection.
0353
0354 Integers 1 to 6
0355
0356 RW
0357
0358 - 1: CPU embedded diode
0359 - 2: 3904 transistor
0360 - 3: thermal diode
0361 - 4: thermistor
0362 - 5: AMD AMDSI
0363 - 6: Intel PECI
0364
0365 Not all types are supported by all chips
0366
0367 What: /sys/class/hwmon/hwmonX/tempY_max
0368 Description:
0369 Temperature max value.
0370
0371 Unit: millidegree Celsius (or millivolt, see below)
0372
0373 RW
0374
0375 What: /sys/class/hwmon/hwmonX/tempY_min
0376 Description:
0377 Temperature min value.
0378
0379 Unit: millidegree Celsius
0380
0381 RW
0382
0383 What: /sys/class/hwmon/hwmonX/tempY_max_hyst
0384 Description:
0385 Temperature hysteresis value for max limit.
0386
0387 Unit: millidegree Celsius
0388
0389 Must be reported as an absolute temperature, NOT a delta
0390 from the max value.
0391
0392 RW
0393
0394 What: /sys/class/hwmon/hwmonX/tempY_min_hyst
0395 Description:
0396 Temperature hysteresis value for min limit.
0397 Unit: millidegree Celsius
0398
0399 Must be reported as an absolute temperature, NOT a delta
0400 from the min value.
0401
0402 RW
0403
0404 What: /sys/class/hwmon/hwmonX/tempY_input
0405 Description:
0406 Temperature input value.
0407
0408 Unit: millidegree Celsius
0409
0410 RO
0411
0412 What: /sys/class/hwmon/hwmonX/tempY_crit
0413 Description:
0414 Temperature critical max value, typically greater than
0415 corresponding temp_max values.
0416
0417 Unit: millidegree Celsius
0418
0419 RW
0420
0421 What: /sys/class/hwmon/hwmonX/tempY_crit_alarm
0422 Description:
0423 Critical high temperature alarm flag.
0424
0425 - 0: OK
0426 - 1: temperature has reached tempY_crit
0427
0428 RW
0429
0430 Contrary to regular alarm flags which clear themselves
0431 automatically when read, this one sticks until cleared by
0432 the user. This is done by writing 0 to the file. Writing
0433 other values is unsupported.
0434
0435 What: /sys/class/hwmon/hwmonX/tempY_crit_hyst
0436 Description:
0437 Temperature hysteresis value for critical limit.
0438
0439 Unit: millidegree Celsius
0440
0441 Must be reported as an absolute temperature, NOT a delta
0442 from the critical value.
0443
0444 RW
0445
0446 What: /sys/class/hwmon/hwmonX/tempY_emergency
0447 Description:
0448 Temperature emergency max value, for chips supporting more than
0449 two upper temperature limits. Must be equal or greater than
0450 corresponding temp_crit values.
0451
0452 Unit: millidegree Celsius
0453
0454 RW
0455
0456 What: /sys/class/hwmon/hwmonX/tempY_emergency_hyst
0457 Description:
0458 Temperature hysteresis value for emergency limit.
0459
0460 Unit: millidegree Celsius
0461
0462 Must be reported as an absolute temperature, NOT a delta
0463 from the emergency value.
0464
0465 RW
0466
0467 What: /sys/class/hwmon/hwmonX/tempY_lcrit
0468 Description:
0469 Temperature critical min value, typically lower than
0470 corresponding temp_min values.
0471
0472 Unit: millidegree Celsius
0473
0474 RW
0475
0476 What: /sys/class/hwmon/hwmonX/tempY_lcrit_hyst
0477 Description:
0478 Temperature hysteresis value for critical min limit.
0479
0480 Unit: millidegree Celsius
0481
0482 Must be reported as an absolute temperature, NOT a delta
0483 from the critical min value.
0484
0485 RW
0486
0487 What: /sys/class/hwmon/hwmonX/tempY_offset
0488 Description:
0489 Temperature offset which is added to the temperature reading
0490 by the chip.
0491
0492 Unit: millidegree Celsius
0493
0494 Read/Write value.
0495
0496 What: /sys/class/hwmon/hwmonX/tempY_label
0497 Description:
0498 Suggested temperature channel label.
0499
0500 Text string
0501
0502 Should only be created if the driver has hints about what
0503 this temperature channel is being used for, and user-space
0504 doesn't. In all other cases, the label is provided by
0505 user-space.
0506
0507 RO
0508
0509 What: /sys/class/hwmon/hwmonX/tempY_lowest
0510 Description:
0511 Historical minimum temperature
0512
0513 Unit: millidegree Celsius
0514
0515 RO
0516
0517 What: /sys/class/hwmon/hwmonX/tempY_highest
0518 Description:
0519 Historical maximum temperature
0520
0521 Unit: millidegree Celsius
0522
0523 RO
0524
0525 What: /sys/class/hwmon/hwmonX/tempY_reset_history
0526 Description:
0527 Reset temp_lowest and temp_highest
0528
0529 WO
0530
0531 What: /sys/class/hwmon/hwmonX/temp_reset_history
0532 Description:
0533 Reset temp_lowest and temp_highest for all sensors
0534
0535 WO
0536
0537 What: /sys/class/hwmon/hwmonX/tempY_enable
0538 Description:
0539 Enable or disable the sensors.
0540
0541 When disabled the sensor read will return -ENODATA.
0542
0543 - 1: Enable
0544 - 0: Disable
0545
0546 RW
0547
0548 What: /sys/class/hwmon/hwmonX/tempY_rated_min
0549 Description:
0550 Minimum rated temperature.
0551
0552 Unit: millidegree Celsius
0553
0554 RO
0555
0556 What: /sys/class/hwmon/hwmonX/tempY_rated_max
0557 Description:
0558 Maximum rated temperature.
0559
0560 Unit: millidegree Celsius
0561
0562 RO
0563
0564 What: /sys/class/hwmon/hwmonX/currY_max
0565 Description:
0566 Current max value
0567
0568 Unit: milliampere
0569
0570 RW
0571
0572 What: /sys/class/hwmon/hwmonX/currY_min
0573 Description:
0574 Current min value.
0575
0576 Unit: milliampere
0577
0578 RW
0579
0580 What: /sys/class/hwmon/hwmonX/currY_lcrit
0581 Description:
0582 Current critical low value
0583
0584 Unit: milliampere
0585
0586 RW
0587
0588 What: /sys/class/hwmon/hwmonX/currY_crit
0589 Description:
0590 Current critical high value.
0591
0592 Unit: milliampere
0593
0594 RW
0595
0596 What: /sys/class/hwmon/hwmonX/currY_input
0597 Description:
0598 Current input value
0599
0600 Unit: milliampere
0601
0602 RO
0603
0604 What: /sys/class/hwmon/hwmonX/currY_average
0605 Description:
0606 Average current use
0607
0608 Unit: milliampere
0609
0610 RO
0611
0612 What: /sys/class/hwmon/hwmonX/currY_lowest
0613 Description:
0614 Historical minimum current
0615
0616 Unit: milliampere
0617
0618 RO
0619
0620 What: /sys/class/hwmon/hwmonX/currY_highest
0621 Description:
0622 Historical maximum current
0623 Unit: milliampere
0624 RO
0625
0626 What: /sys/class/hwmon/hwmonX/currY_reset_history
0627 Description:
0628 Reset currX_lowest and currX_highest
0629
0630 WO
0631
0632 What: /sys/class/hwmon/hwmonX/curr_reset_history
0633 Description:
0634 Reset currX_lowest and currX_highest for all sensors
0635
0636 WO
0637
0638 What: /sys/class/hwmon/hwmonX/currY_enable
0639 Description:
0640 Enable or disable the sensors.
0641
0642 When disabled the sensor read will return -ENODATA.
0643
0644 - 1: Enable
0645 - 0: Disable
0646
0647 RW
0648
0649 What: /sys/class/hwmon/hwmonX/currY_rated_min
0650 Description:
0651 Minimum rated current.
0652
0653 Unit: milliampere
0654
0655 RO
0656
0657 What: /sys/class/hwmon/hwmonX/currY_rated_max
0658 Description:
0659 Maximum rated current.
0660
0661 Unit: milliampere
0662
0663 RO
0664
0665 What: /sys/class/hwmon/hwmonX/powerY_average
0666 Description:
0667 Average power use
0668
0669 Unit: microWatt
0670
0671 RO
0672
0673 What: /sys/class/hwmon/hwmonX/powerY_average_interval
0674 Description:
0675 Power use averaging interval. A poll
0676 notification is sent to this file if the
0677 hardware changes the averaging interval.
0678
0679 Unit: milliseconds
0680
0681 RW
0682
0683 What: /sys/class/hwmon/hwmonX/powerY_average_interval_max
0684 Description:
0685 Maximum power use averaging interval
0686
0687 Unit: milliseconds
0688
0689 RO
0690
0691 What: /sys/class/hwmon/hwmonX/powerY_average_interval_min
0692 Description:
0693 Minimum power use averaging interval
0694
0695 Unit: milliseconds
0696
0697 RO
0698
0699 What: /sys/class/hwmon/hwmonX/powerY_average_highest
0700 Description:
0701 Historical average maximum power use
0702
0703 Unit: microWatt
0704
0705 RO
0706
0707 What: /sys/class/hwmon/hwmonX/powerY_average_lowest
0708 Description:
0709 Historical average minimum power use
0710
0711 Unit: microWatt
0712
0713 RO
0714
0715 What: /sys/class/hwmon/hwmonX/powerY_average_max
0716 Description:
0717 A poll notification is sent to
0718 `powerY_average` when power use
0719 rises above this value.
0720
0721 Unit: microWatt
0722
0723 RW
0724
0725 What: /sys/class/hwmon/hwmonX/powerY_average_min
0726 Description:
0727 A poll notification is sent to
0728 `powerY_average` when power use
0729 sinks below this value.
0730
0731 Unit: microWatt
0732
0733 RW
0734
0735 What: /sys/class/hwmon/hwmonX/powerY_input
0736 Description:
0737 Instantaneous power use
0738
0739 Unit: microWatt
0740
0741 RO
0742
0743 What: /sys/class/hwmon/hwmonX/powerY_input_highest
0744 Description:
0745 Historical maximum power use
0746
0747 Unit: microWatt
0748
0749 RO
0750
0751 What: /sys/class/hwmon/hwmonX/powerY_input_lowest
0752 Description:
0753 Historical minimum power use
0754
0755 Unit: microWatt
0756
0757 RO
0758
0759 What: /sys/class/hwmon/hwmonX/powerY_reset_history
0760 Description:
0761 Reset input_highest, input_lowest,
0762 average_highest and average_lowest.
0763
0764 WO
0765
0766 What: /sys/class/hwmon/hwmonX/powerY_accuracy
0767 Description:
0768 Accuracy of the power meter.
0769
0770 Unit: Percent
0771
0772 RO
0773
0774 What: /sys/class/hwmon/hwmonX/powerY_cap
0775 Description:
0776 If power use rises above this limit, the
0777 system should take action to reduce power use.
0778 A poll notification is sent to this file if the
0779 cap is changed by the hardware. The `*_cap`
0780 files only appear if the cap is known to be
0781 enforced by hardware.
0782
0783 Unit: microWatt
0784
0785 RW
0786
0787 What: /sys/class/hwmon/hwmonX/powerY_cap_hyst
0788 Description:
0789 Margin of hysteresis built around capping and
0790 notification.
0791
0792 Unit: microWatt
0793
0794 RW
0795
0796 What: /sys/class/hwmon/hwmonX/powerY_cap_max
0797 Description:
0798 Maximum cap that can be set.
0799
0800 Unit: microWatt
0801
0802 RO
0803
0804 What: /sys/class/hwmon/hwmonX/powerY_cap_min
0805 Description:
0806 Minimum cap that can be set.
0807
0808 Unit: microWatt
0809
0810 RO
0811
0812 What: /sys/class/hwmon/hwmonX/powerY_max
0813 Description:
0814 Maximum power.
0815
0816 Unit: microWatt
0817
0818 RW
0819
0820 What: /sys/class/hwmon/hwmonX/powerY_crit
0821 Description:
0822 Critical maximum power.
0823
0824 If power rises to or above this limit, the
0825 system is expected take drastic action to reduce
0826 power consumption, such as a system shutdown or
0827 a forced powerdown of some devices.
0828
0829 Unit: microWatt
0830
0831 RW
0832
0833 What: /sys/class/hwmon/hwmonX/powerY_enable
0834 Description:
0835 Enable or disable the sensors.
0836
0837 When disabled the sensor read will return
0838 -ENODATA.
0839
0840 - 1: Enable
0841 - 0: Disable
0842
0843 RW
0844
0845 What: /sys/class/hwmon/hwmonX/powerY_rated_min
0846 Description:
0847 Minimum rated power.
0848
0849 Unit: microWatt
0850
0851 RO
0852
0853 What: /sys/class/hwmon/hwmonX/powerY_rated_max
0854 Description:
0855 Maximum rated power.
0856
0857 Unit: microWatt
0858
0859 RO
0860
0861 What: /sys/class/hwmon/hwmonX/energyY_input
0862 Description:
0863 Cumulative energy use
0864
0865 Unit: microJoule
0866
0867 RO
0868
0869 What: /sys/class/hwmon/hwmonX/energyY_enable
0870 Description:
0871 Enable or disable the sensors.
0872
0873 When disabled the sensor read will return
0874 -ENODATA.
0875
0876 - 1: Enable
0877 - 0: Disable
0878
0879 RW
0880
0881 What: /sys/class/hwmon/hwmonX/humidityY_input
0882 Description:
0883 Humidity
0884
0885 Unit: milli-percent (per cent mille, pcm)
0886
0887 RO
0888
0889
0890 What: /sys/class/hwmon/hwmonX/humidityY_enable
0891 Description:
0892 Enable or disable the sensors
0893
0894 When disabled the sensor read will return
0895 -ENODATA.
0896
0897 - 1: Enable
0898 - 0: Disable
0899
0900 RW
0901
0902 What: /sys/class/hwmon/hwmonX/humidityY_rated_min
0903 Description:
0904 Minimum rated humidity.
0905
0906 Unit: milli-percent (per cent mille, pcm)
0907
0908 RO
0909
0910 What: /sys/class/hwmon/hwmonX/humidityY_rated_max
0911 Description:
0912 Maximum rated humidity.
0913
0914 Unit: milli-percent (per cent mille, pcm)
0915
0916 RO
0917
0918
0919 What: /sys/class/hwmon/hwmonX/intrusionY_alarm
0920 Description:
0921 Chassis intrusion detection
0922
0923 - 0: OK
0924 - 1: intrusion detected
0925
0926 RW
0927
0928 Contrary to regular alarm flags which clear themselves
0929 automatically when read, this one sticks until cleared by
0930 the user. This is done by writing 0 to the file. Writing
0931 other values is unsupported.
0932
0933 What: /sys/class/hwmon/hwmonX/intrusionY_beep
0934 Description:
0935 Chassis intrusion beep
0936
0937 - 0: disable
0938 - 1: enable
0939
0940 RW
0941
0942 What: /sys/class/hwmon/hwmonX/device/pec
0943 Description:
0944 PEC support on I2C devices
0945
0946 - 0, off, n: disable
0947 - 1, on, y: enable
0948
0949 RW