1 What: /sys/class/hwmon/hwmonX/name 1 What: /sys/class/hwmon/hwmonX/name
2 Description: 2 Description:
3 The chip name. 3 The chip name.
4 This should be a short, lowerc 4 This should be a short, lowercase string, not containing
5 whitespace, dashes, or the wil 5 whitespace, dashes, or the wildcard character '*'.
6 This attribute represents the 6 This attribute represents the chip name. It is the only
7 mandatory attribute. 7 mandatory attribute.
8 I2C devices get this attribute 8 I2C devices get this attribute created automatically.
9 9
10 RO 10 RO
11 11
12 What: /sys/class/hwmon/hwmonX/label 12 What: /sys/class/hwmon/hwmonX/label
13 Description: 13 Description:
14 A descriptive label that allow 14 A descriptive label that allows to uniquely identify a
15 device within the system. 15 device within the system.
16 The contents of the label are 16 The contents of the label are free-form.
17 17
18 RO 18 RO
19 19
20 What: /sys/class/hwmon/hwmonX/update 20 What: /sys/class/hwmon/hwmonX/update_interval
21 Description: 21 Description:
22 The interval at which the chip 22 The interval at which the chip will update readings.
23 Unit: millisecond 23 Unit: millisecond
24 24
25 RW 25 RW
26 26
27 Some devices have a variable u 27 Some devices have a variable update rate or interval.
28 This attribute can be used to 28 This attribute can be used to change it to the desired value.
29 29
30 What: /sys/class/hwmon/hwmonX/inY_mi 30 What: /sys/class/hwmon/hwmonX/inY_min
31 Description: 31 Description:
32 Voltage min value. 32 Voltage min value.
33 33
34 Unit: millivolt 34 Unit: millivolt
35 35
36 RW 36 RW
37 37
38 What: /sys/class/hwmon/hwmonX/inY_lc 38 What: /sys/class/hwmon/hwmonX/inY_lcrit
39 Description: 39 Description:
40 Voltage critical min value. 40 Voltage critical min value.
41 41
42 Unit: millivolt 42 Unit: millivolt
43 43
44 RW 44 RW
45 45
46 If voltage drops to or below t 46 If voltage drops to or below this limit, the system may
47 take drastic action such as po 47 take drastic action such as power down or reset. At the very
48 least, it should report a faul 48 least, it should report a fault.
49 49
50 What: /sys/class/hwmon/hwmonX/inY_ma 50 What: /sys/class/hwmon/hwmonX/inY_max
51 Description: 51 Description:
52 Voltage max value. 52 Voltage max value.
53 53
54 Unit: millivolt 54 Unit: millivolt
55 55
56 RW 56 RW
57 57
58 What: /sys/class/hwmon/hwmonX/inY_cr 58 What: /sys/class/hwmon/hwmonX/inY_crit
59 Description: 59 Description:
60 Voltage critical max value. 60 Voltage critical max value.
61 61
62 Unit: millivolt 62 Unit: millivolt
63 63
64 RW 64 RW
65 65
66 If voltage reaches or exceeds 66 If voltage reaches or exceeds this limit, the system may
67 take drastic action such as po 67 take drastic action such as power down or reset. At the very
68 least, it should report a faul 68 least, it should report a fault.
69 69
70 What: /sys/class/hwmon/hwmonX/inY_in 70 What: /sys/class/hwmon/hwmonX/inY_input
71 Description: 71 Description:
72 Voltage input value. 72 Voltage input value.
73 73
74 Unit: millivolt 74 Unit: millivolt
75 75
76 RO 76 RO
77 77
78 Voltage measured on the chip p 78 Voltage measured on the chip pin.
79 79
80 Actual voltage depends on the 80 Actual voltage depends on the scaling resistors on the
81 motherboard, as recommended in 81 motherboard, as recommended in the chip datasheet.
82 82
83 This varies by chip and by mot 83 This varies by chip and by motherboard.
84 Because of this variation, val 84 Because of this variation, values are generally NOT scaled
85 by the chip driver, and must b 85 by the chip driver, and must be done by the application.
86 However, some drivers (notably 86 However, some drivers (notably lm87 and via686a)
87 do scale, because of internal 87 do scale, because of internal resistors built into a chip.
88 These drivers will output the 88 These drivers will output the actual voltage. Rule of
89 thumb: drivers should report t 89 thumb: drivers should report the voltage values at the
90 "pins" of the chip. 90 "pins" of the chip.
91 91
92 What: /sys/class/hwmon/hwmonX/inY_av 92 What: /sys/class/hwmon/hwmonX/inY_average
93 Description: 93 Description:
94 Average voltage 94 Average voltage
95 95
96 Unit: millivolt 96 Unit: millivolt
97 97
98 RO 98 RO
99 99
100 What: /sys/class/hwmon/hwmonX/inY_lo 100 What: /sys/class/hwmon/hwmonX/inY_lowest
101 Description: 101 Description:
102 Historical minimum voltage 102 Historical minimum voltage
103 103
104 Unit: millivolt 104 Unit: millivolt
105 105
106 RO 106 RO
107 107
108 What: /sys/class/hwmon/hwmonX/inY_hi 108 What: /sys/class/hwmon/hwmonX/inY_highest
109 Description: 109 Description:
110 Historical maximum voltage 110 Historical maximum voltage
111 111
112 Unit: millivolt 112 Unit: millivolt
113 113
114 RO 114 RO
115 115
116 What: /sys/class/hwmon/hwmonX/inY_re 116 What: /sys/class/hwmon/hwmonX/inY_reset_history
117 Description: 117 Description:
118 Reset inX_lowest and inX_highe 118 Reset inX_lowest and inX_highest
119 119
120 WO 120 WO
121 121
122 What: /sys/class/hwmon/hwmonX/in_res 122 What: /sys/class/hwmon/hwmonX/in_reset_history
123 Description: 123 Description:
124 Reset inX_lowest and inX_highe 124 Reset inX_lowest and inX_highest for all sensors
125 125
126 WO 126 WO
127 127
128 What: /sys/class/hwmon/hwmonX/inY_la 128 What: /sys/class/hwmon/hwmonX/inY_label
129 Description: 129 Description:
130 Suggested voltage channel labe 130 Suggested voltage channel label.
131 131
132 Text string 132 Text string
133 133
134 Should only be created if the 134 Should only be created if the driver has hints about what
135 this voltage channel is being 135 this voltage channel is being used for, and user-space
136 doesn't. In all other cases, t 136 doesn't. In all other cases, the label is provided by
137 user-space. 137 user-space.
138 138
139 RO 139 RO
140 140
141 What: /sys/class/hwmon/hwmonX/inY_en 141 What: /sys/class/hwmon/hwmonX/inY_enable
142 Description: 142 Description:
143 Enable or disable the sensors. 143 Enable or disable the sensors.
144 144
145 When disabled the sensor read 145 When disabled the sensor read will return -ENODATA.
146 146
147 - 1: Enable 147 - 1: Enable
148 - 0: Disable 148 - 0: Disable
149 149
150 RW 150 RW
151 151
152 What: /sys/class/hwmon/hwmonX/inY_fa <<
153 Description: <<
154 Reports a voltage hard failure <<
155 <<
156 - 1: Failed <<
157 - 0: Ok <<
158 <<
159 RO <<
160 <<
161 What: /sys/class/hwmon/hwmonX/cpuY_v 152 What: /sys/class/hwmon/hwmonX/cpuY_vid
162 Description: 153 Description:
163 CPU core reference voltage. 154 CPU core reference voltage.
164 155
165 Unit: millivolt 156 Unit: millivolt
166 157
167 RO 158 RO
168 159
169 Not always correct. 160 Not always correct.
170 161
171 What: /sys/class/hwmon/hwmonX/vrm 162 What: /sys/class/hwmon/hwmonX/vrm
172 Description: 163 Description:
173 Voltage Regulator Module versi 164 Voltage Regulator Module version number.
174 165
175 RW (but changing it should no 166 RW (but changing it should no more be necessary)
176 167
177 Originally the VRM standard ve 168 Originally the VRM standard version multiplied by 10, but now
178 an arbitrary number, as not al 169 an arbitrary number, as not all standards have a version
179 number. 170 number.
180 171
181 Affects the way the driver cal 172 Affects the way the driver calculates the CPU core reference
182 voltage from the vid pins. 173 voltage from the vid pins.
183 174
184 What: /sys/class/hwmon/hwmonX/inY_ra 175 What: /sys/class/hwmon/hwmonX/inY_rated_min
185 Description: 176 Description:
186 Minimum rated voltage. 177 Minimum rated voltage.
187 178
188 Unit: millivolt 179 Unit: millivolt
189 180
190 RO 181 RO
191 182
192 What: /sys/class/hwmon/hwmonX/inY_ra 183 What: /sys/class/hwmon/hwmonX/inY_rated_max
193 Description: 184 Description:
194 Maximum rated voltage. 185 Maximum rated voltage.
195 186
196 Unit: millivolt 187 Unit: millivolt
197 188
198 RO 189 RO
199 190
200 What: /sys/class/hwmon/hwmonX/fanY_m 191 What: /sys/class/hwmon/hwmonX/fanY_min
201 Description: 192 Description:
202 Fan minimum value 193 Fan minimum value
203 194
204 Unit: revolution/min (RPM) 195 Unit: revolution/min (RPM)
205 196
206 RW 197 RW
207 198
208 What: /sys/class/hwmon/hwmonX/fanY_m 199 What: /sys/class/hwmon/hwmonX/fanY_max
209 Description: 200 Description:
210 Fan maximum value 201 Fan maximum value
211 202
212 Unit: revolution/min (RPM) 203 Unit: revolution/min (RPM)
213 204
214 Only rarely supported by the h 205 Only rarely supported by the hardware.
215 RW 206 RW
216 207
217 What: /sys/class/hwmon/hwmonX/fanY_i 208 What: /sys/class/hwmon/hwmonX/fanY_input
218 Description: 209 Description:
219 Fan input value. 210 Fan input value.
220 211
221 Unit: revolution/min (RPM) 212 Unit: revolution/min (RPM)
222 213
223 RO 214 RO
224 215
225 What: /sys/class/hwmon/hwmonX/fanY_d 216 What: /sys/class/hwmon/hwmonX/fanY_div
226 Description: 217 Description:
227 Fan divisor. 218 Fan divisor.
228 219
229 Integer value in powers of two 220 Integer value in powers of two (1, 2, 4, 8, 16, 32, 64, 128).
230 221
231 RW 222 RW
232 223
233 Some chips only support values 224 Some chips only support values 1, 2, 4 and 8.
234 Note that this is actually an 225 Note that this is actually an internal clock divisor, which
235 affects the measurable speed r 226 affects the measurable speed range, not the read value.
236 227
237 What: /sys/class/hwmon/hwmonX/fanY_p 228 What: /sys/class/hwmon/hwmonX/fanY_pulses
238 Description: 229 Description:
239 Number of tachometer pulses pe 230 Number of tachometer pulses per fan revolution.
240 231
241 Integer value, typically betwe 232 Integer value, typically between 1 and 4.
242 233
243 RW 234 RW
244 235
245 This value is a characteristic 236 This value is a characteristic of the fan connected to the
246 device's input, so it has to b 237 device's input, so it has to be set in accordance with the fan
247 model. 238 model.
248 239
249 Should only be created if the 240 Should only be created if the chip has a register to configure
250 the number of pulses. In the a 241 the number of pulses. In the absence of such a register (and
251 thus attribute) the value assu 242 thus attribute) the value assumed by all devices is 2 pulses
252 per fan revolution. 243 per fan revolution.
253 244
254 What: /sys/class/hwmon/hwmonX/fanY_t 245 What: /sys/class/hwmon/hwmonX/fanY_target
255 Description: 246 Description:
256 Desired fan speed 247 Desired fan speed
257 248
258 Unit: revolution/min (RPM) 249 Unit: revolution/min (RPM)
259 250
260 RW 251 RW
261 252
262 Only makes sense if the chip s 253 Only makes sense if the chip supports closed-loop fan speed
263 control based on the measured 254 control based on the measured fan speed.
264 255
265 What: /sys/class/hwmon/hwmonX/fanY_l 256 What: /sys/class/hwmon/hwmonX/fanY_label
266 Description: 257 Description:
267 Suggested fan channel label. 258 Suggested fan channel label.
268 259
269 Text string 260 Text string
270 261
271 Should only be created if the 262 Should only be created if the driver has hints about what
272 this fan channel is being used 263 this fan channel is being used for, and user-space doesn't.
273 In all other cases, the label 264 In all other cases, the label is provided by user-space.
274 265
275 RO 266 RO
276 267
277 What: /sys/class/hwmon/hwmonX/fanY_e 268 What: /sys/class/hwmon/hwmonX/fanY_enable
278 Description: 269 Description:
279 Enable or disable the sensors. 270 Enable or disable the sensors.
280 271
281 When disabled the sensor read 272 When disabled the sensor read will return -ENODATA.
282 273
283 - 1: Enable 274 - 1: Enable
284 - 0: Disable 275 - 0: Disable
285 276
286 RW 277 RW
287 278
288 What: /sys/class/hwmon/hwmonX/fanY_f 279 What: /sys/class/hwmon/hwmonX/fanY_fault
289 Description: 280 Description:
290 Reports if a fan has reported 281 Reports if a fan has reported failure.
291 282
292 - 1: Failed 283 - 1: Failed
293 - 0: Ok 284 - 0: Ok
294 285
295 RO 286 RO
296 287
297 What: /sys/class/hwmon/hwmonX/pwmY 288 What: /sys/class/hwmon/hwmonX/pwmY
298 Description: 289 Description:
299 Pulse width modulation fan con 290 Pulse width modulation fan control.
300 291
301 Integer value in the range 0 t 292 Integer value in the range 0 to 255
302 293
303 RW 294 RW
304 295
305 255 is max or 100%. 296 255 is max or 100%.
306 297
307 What: /sys/class/hwmon/hwmonX/pwmY_e 298 What: /sys/class/hwmon/hwmonX/pwmY_enable
308 Description: 299 Description:
309 Fan speed control method: 300 Fan speed control method:
310 301
311 - 0: no fan speed control (i.e 302 - 0: no fan speed control (i.e. fan at full speed)
312 - 1: manual fan speed control 303 - 1: manual fan speed control enabled (using `pwmY`)
313 - 2+: automatic fan speed cont 304 - 2+: automatic fan speed control enabled
314 305
315 Check individual chip document 306 Check individual chip documentation files for automatic mode
316 details. 307 details.
317 308
318 RW 309 RW
319 310
320 What: /sys/class/hwmon/hwmonX/pwmY_m 311 What: /sys/class/hwmon/hwmonX/pwmY_mode
321 Description: 312 Description:
322 - 0: DC mode (direct current) 313 - 0: DC mode (direct current)
323 - 1: PWM mode (pulse-width mod 314 - 1: PWM mode (pulse-width modulation)
324 315
325 RW 316 RW
326 317
327 What: /sys/class/hwmon/hwmonX/pwmY_f 318 What: /sys/class/hwmon/hwmonX/pwmY_freq
328 Description: 319 Description:
329 Base PWM frequency in Hz. 320 Base PWM frequency in Hz.
330 321
331 Only possibly available when p 322 Only possibly available when pwmN_mode is PWM, but not always
332 present even then. 323 present even then.
333 324
334 RW 325 RW
335 326
336 What: /sys/class/hwmon/hwmonX/pwmY_a 327 What: /sys/class/hwmon/hwmonX/pwmY_auto_channels_temp
337 Description: 328 Description:
338 Select which temperature chann 329 Select which temperature channels affect this PWM output in
339 auto mode. 330 auto mode.
340 331
341 Bitfield, 1 is temp1, 2 is tem 332 Bitfield, 1 is temp1, 2 is temp2, 4 is temp3 etc...
342 Which values are possible depe 333 Which values are possible depend on the chip used.
343 334
344 RW 335 RW
345 336
346 What: /sys/class/hwmon/hwmonX/pwmY_a 337 What: /sys/class/hwmon/hwmonX/pwmY_auto_pointZ_pwm
347 What: /sys/class/hwmon/hwmonX/pwmY_a 338 What: /sys/class/hwmon/hwmonX/pwmY_auto_pointZ_temp
348 What: /sys/class/hwmon/hwmonX/pwmY_a 339 What: /sys/class/hwmon/hwmonX/pwmY_auto_pointZ_temp_hyst
349 Description: 340 Description:
350 Define the PWM vs temperature 341 Define the PWM vs temperature curve.
351 342
352 Number of trip points is chip- 343 Number of trip points is chip-dependent. Use this for chips
353 which associate trip points to 344 which associate trip points to PWM output channels.
354 345
355 RW 346 RW
356 347
357 What: /sys/class/hwmon/hwmonX/tempY_ 348 What: /sys/class/hwmon/hwmonX/tempY_auto_pointZ_pwm
358 What: /sys/class/hwmon/hwmonX/tempY_ 349 What: /sys/class/hwmon/hwmonX/tempY_auto_pointZ_temp
359 What: /sys/class/hwmon/hwmonX/tempY_ 350 What: /sys/class/hwmon/hwmonX/tempY_auto_pointZ_temp_hyst
360 Description: 351 Description:
361 Define the PWM vs temperature 352 Define the PWM vs temperature curve.
362 353
363 Number of trip points is chip- 354 Number of trip points is chip-dependent. Use this for chips
364 which associate trip points to 355 which associate trip points to temperature channels.
365 356
366 RW 357 RW
367 358
368 What: /sys/class/hwmon/hwmonX/tempY_ 359 What: /sys/class/hwmon/hwmonX/tempY_type
369 Description: 360 Description:
370 Sensor type selection. 361 Sensor type selection.
371 362
372 Integers 1 to 6 363 Integers 1 to 6
373 364
374 RW 365 RW
375 366
376 - 1: CPU embedded diode 367 - 1: CPU embedded diode
377 - 2: 3904 transistor 368 - 2: 3904 transistor
378 - 3: thermal diode 369 - 3: thermal diode
379 - 4: thermistor 370 - 4: thermistor
380 - 5: AMD AMDSI 371 - 5: AMD AMDSI
381 - 6: Intel PECI 372 - 6: Intel PECI
382 373
383 Not all types are supported by 374 Not all types are supported by all chips
384 375
385 What: /sys/class/hwmon/hwmonX/tempY_ 376 What: /sys/class/hwmon/hwmonX/tempY_max
386 Description: 377 Description:
387 Temperature max value. 378 Temperature max value.
388 379
389 Unit: millidegree Celsius (or 380 Unit: millidegree Celsius (or millivolt, see below)
390 381
391 RW 382 RW
392 383
393 What: /sys/class/hwmon/hwmonX/tempY_ <<
394 Description: <<
395 Maximum temperature alarm flag <<
396 <<
397 - 0: OK <<
398 - 1: temperature has reached t <<
399 <<
400 RO <<
401 <<
402 What: /sys/class/hwmon/hwmonX/tempY_ 384 What: /sys/class/hwmon/hwmonX/tempY_min
403 Description: 385 Description:
404 Temperature min value. 386 Temperature min value.
405 387
406 Unit: millidegree Celsius 388 Unit: millidegree Celsius
407 389
408 RW 390 RW
409 391
410 What: /sys/class/hwmon/hwmonX/tempY_ <<
411 Description: <<
412 Minimum temperature alarm flag <<
413 <<
414 - 0: OK <<
415 - 1: temperature has reached t <<
416 <<
417 RO <<
418 <<
419 What: /sys/class/hwmon/hwmonX/tempY_ 392 What: /sys/class/hwmon/hwmonX/tempY_max_hyst
420 Description: 393 Description:
421 Temperature hysteresis value f 394 Temperature hysteresis value for max limit.
422 395
423 Unit: millidegree Celsius 396 Unit: millidegree Celsius
424 397
425 Must be reported as an absolut 398 Must be reported as an absolute temperature, NOT a delta
426 from the max value. 399 from the max value.
427 400
428 RW 401 RW
429 402
430 What: /sys/class/hwmon/hwmonX/tempY_ 403 What: /sys/class/hwmon/hwmonX/tempY_min_hyst
431 Description: 404 Description:
432 Temperature hysteresis value f 405 Temperature hysteresis value for min limit.
433 Unit: millidegree Celsius 406 Unit: millidegree Celsius
434 407
435 Must be reported as an absolut 408 Must be reported as an absolute temperature, NOT a delta
436 from the min value. 409 from the min value.
437 410
438 RW 411 RW
439 412
440 What: /sys/class/hwmon/hwmonX/tempY_ 413 What: /sys/class/hwmon/hwmonX/tempY_input
441 Description: 414 Description:
442 Temperature input value. 415 Temperature input value.
443 416
444 Unit: millidegree Celsius 417 Unit: millidegree Celsius
445 418
446 RO 419 RO
447 420
448 What: /sys/class/hwmon/hwmonX/tempY_ 421 What: /sys/class/hwmon/hwmonX/tempY_crit
449 Description: 422 Description:
450 Temperature critical max value 423 Temperature critical max value, typically greater than
451 corresponding temp_max values. 424 corresponding temp_max values.
452 425
453 Unit: millidegree Celsius 426 Unit: millidegree Celsius
454 427
455 RW 428 RW
456 429
457 What: /sys/class/hwmon/hwmonX/tempY_ 430 What: /sys/class/hwmon/hwmonX/tempY_crit_alarm
458 Description: 431 Description:
459 Critical high temperature alar 432 Critical high temperature alarm flag.
460 433
461 - 0: OK 434 - 0: OK
462 - 1: temperature has reached t 435 - 1: temperature has reached tempY_crit
463 436
464 RO !! 437 RW
>> 438
>> 439 Contrary to regular alarm flags which clear themselves
>> 440 automatically when read, this one sticks until cleared by
>> 441 the user. This is done by writing 0 to the file. Writing
>> 442 other values is unsupported.
465 443
466 What: /sys/class/hwmon/hwmonX/tempY_ 444 What: /sys/class/hwmon/hwmonX/tempY_crit_hyst
467 Description: 445 Description:
468 Temperature hysteresis value f 446 Temperature hysteresis value for critical limit.
469 447
470 Unit: millidegree Celsius 448 Unit: millidegree Celsius
471 449
472 Must be reported as an absolut 450 Must be reported as an absolute temperature, NOT a delta
473 from the critical value. 451 from the critical value.
474 452
475 RW 453 RW
476 454
477 What: /sys/class/hwmon/hwmonX/tempY_ 455 What: /sys/class/hwmon/hwmonX/tempY_emergency
478 Description: 456 Description:
479 Temperature emergency max valu 457 Temperature emergency max value, for chips supporting more than
480 two upper temperature limits. 458 two upper temperature limits. Must be equal or greater than
481 corresponding temp_crit values 459 corresponding temp_crit values.
482 460
483 Unit: millidegree Celsius 461 Unit: millidegree Celsius
484 462
485 RW 463 RW
486 464
487 What: /sys/class/hwmon/hwmonX/tempY_ <<
488 Description: <<
489 Emergency high temperature ala <<
490 <<
491 - 0: OK <<
492 - 1: temperature has reached t <<
493 <<
494 RO <<
495 <<
496 What: /sys/class/hwmon/hwmonX/tempY_ 465 What: /sys/class/hwmon/hwmonX/tempY_emergency_hyst
497 Description: 466 Description:
498 Temperature hysteresis value f 467 Temperature hysteresis value for emergency limit.
499 468
500 Unit: millidegree Celsius 469 Unit: millidegree Celsius
501 470
502 Must be reported as an absolut 471 Must be reported as an absolute temperature, NOT a delta
503 from the emergency value. 472 from the emergency value.
504 473
505 RW 474 RW
506 475
507 What: /sys/class/hwmon/hwmonX/tempY_ 476 What: /sys/class/hwmon/hwmonX/tempY_lcrit
508 Description: 477 Description:
509 Temperature critical min value 478 Temperature critical min value, typically lower than
510 corresponding temp_min values. 479 corresponding temp_min values.
511 480
512 Unit: millidegree Celsius 481 Unit: millidegree Celsius
513 482
514 RW 483 RW
515 484
516 What: /sys/class/hwmon/hwmonX/tempY_ 485 What: /sys/class/hwmon/hwmonX/tempY_lcrit_hyst
517 Description: 486 Description:
518 Temperature hysteresis value f 487 Temperature hysteresis value for critical min limit.
519 488
520 Unit: millidegree Celsius 489 Unit: millidegree Celsius
521 490
522 Must be reported as an absolut 491 Must be reported as an absolute temperature, NOT a delta
523 from the critical min value. 492 from the critical min value.
524 493
525 RW 494 RW
526 495
527 What: /sys/class/hwmon/hwmonX/tempY_ 496 What: /sys/class/hwmon/hwmonX/tempY_offset
528 Description: 497 Description:
529 Temperature offset which is ad 498 Temperature offset which is added to the temperature reading
530 by the chip. 499 by the chip.
531 500
532 Unit: millidegree Celsius 501 Unit: millidegree Celsius
533 502
534 Read/Write value. 503 Read/Write value.
535 504
536 What: /sys/class/hwmon/hwmonX/tempY_ 505 What: /sys/class/hwmon/hwmonX/tempY_label
537 Description: 506 Description:
538 Suggested temperature channel 507 Suggested temperature channel label.
539 508
540 Text string 509 Text string
541 510
542 Should only be created if the 511 Should only be created if the driver has hints about what
543 this temperature channel is be 512 this temperature channel is being used for, and user-space
544 doesn't. In all other cases, t 513 doesn't. In all other cases, the label is provided by
545 user-space. 514 user-space.
546 515
547 RO 516 RO
548 517
549 What: /sys/class/hwmon/hwmonX/tempY_ 518 What: /sys/class/hwmon/hwmonX/tempY_lowest
550 Description: 519 Description:
551 Historical minimum temperature 520 Historical minimum temperature
552 521
553 Unit: millidegree Celsius 522 Unit: millidegree Celsius
554 523
555 RO 524 RO
556 525
557 What: /sys/class/hwmon/hwmonX/tempY_ 526 What: /sys/class/hwmon/hwmonX/tempY_highest
558 Description: 527 Description:
559 Historical maximum temperature 528 Historical maximum temperature
560 529
561 Unit: millidegree Celsius 530 Unit: millidegree Celsius
562 531
563 RO 532 RO
564 533
565 What: /sys/class/hwmon/hwmonX/tempY_ 534 What: /sys/class/hwmon/hwmonX/tempY_reset_history
566 Description: 535 Description:
567 Reset temp_lowest and temp_hig 536 Reset temp_lowest and temp_highest
568 537
569 WO 538 WO
570 539
571 What: /sys/class/hwmon/hwmonX/temp_r 540 What: /sys/class/hwmon/hwmonX/temp_reset_history
572 Description: 541 Description:
573 Reset temp_lowest and temp_hig 542 Reset temp_lowest and temp_highest for all sensors
574 543
575 WO 544 WO
576 545
577 What: /sys/class/hwmon/hwmonX/tempY_ 546 What: /sys/class/hwmon/hwmonX/tempY_enable
578 Description: 547 Description:
579 Enable or disable the sensors. 548 Enable or disable the sensors.
580 549
581 When disabled the sensor read 550 When disabled the sensor read will return -ENODATA.
582 551
583 - 1: Enable 552 - 1: Enable
584 - 0: Disable 553 - 0: Disable
585 554
586 RW 555 RW
587 556
588 What: /sys/class/hwmon/hwmonX/tempY_ 557 What: /sys/class/hwmon/hwmonX/tempY_rated_min
589 Description: 558 Description:
590 Minimum rated temperature. 559 Minimum rated temperature.
591 560
592 Unit: millidegree Celsius 561 Unit: millidegree Celsius
593 562
594 RO 563 RO
595 564
596 What: /sys/class/hwmon/hwmonX/tempY_ 565 What: /sys/class/hwmon/hwmonX/tempY_rated_max
597 Description: 566 Description:
598 Maximum rated temperature. 567 Maximum rated temperature.
599 568
600 Unit: millidegree Celsius 569 Unit: millidegree Celsius
601 570
602 RO 571 RO
603 572
604 What: /sys/class/hwmon/hwmonX/currY_ 573 What: /sys/class/hwmon/hwmonX/currY_max
605 Description: 574 Description:
606 Current max value 575 Current max value
607 576
608 Unit: milliampere 577 Unit: milliampere
609 578
610 RW 579 RW
611 580
612 What: /sys/class/hwmon/hwmonX/currY_ 581 What: /sys/class/hwmon/hwmonX/currY_min
613 Description: 582 Description:
614 Current min value. 583 Current min value.
615 584
616 Unit: milliampere 585 Unit: milliampere
617 586
618 RW 587 RW
619 588
620 What: /sys/class/hwmon/hwmonX/currY_ 589 What: /sys/class/hwmon/hwmonX/currY_lcrit
621 Description: 590 Description:
622 Current critical low value 591 Current critical low value
623 592
624 Unit: milliampere 593 Unit: milliampere
625 594
626 RW 595 RW
627 596
628 What: /sys/class/hwmon/hwmonX/currY_ 597 What: /sys/class/hwmon/hwmonX/currY_crit
629 Description: 598 Description:
630 Current critical high value. 599 Current critical high value.
631 600
632 Unit: milliampere 601 Unit: milliampere
633 602
634 RW 603 RW
635 604
636 What: /sys/class/hwmon/hwmonX/currY_ 605 What: /sys/class/hwmon/hwmonX/currY_input
637 Description: 606 Description:
638 Current input value 607 Current input value
639 608
640 Unit: milliampere 609 Unit: milliampere
641 610
642 RO 611 RO
643 612
644 What: /sys/class/hwmon/hwmonX/currY_ 613 What: /sys/class/hwmon/hwmonX/currY_average
645 Description: 614 Description:
646 Average current use 615 Average current use
647 616
648 Unit: milliampere 617 Unit: milliampere
649 618
650 RO 619 RO
651 620
652 What: /sys/class/hwmon/hwmonX/currY_ 621 What: /sys/class/hwmon/hwmonX/currY_lowest
653 Description: 622 Description:
654 Historical minimum current 623 Historical minimum current
655 624
656 Unit: milliampere 625 Unit: milliampere
657 626
658 RO 627 RO
659 628
660 What: /sys/class/hwmon/hwmonX/currY_ 629 What: /sys/class/hwmon/hwmonX/currY_highest
661 Description: 630 Description:
662 Historical maximum current 631 Historical maximum current
663 Unit: milliampere 632 Unit: milliampere
664 RO 633 RO
665 634
666 What: /sys/class/hwmon/hwmonX/currY_ 635 What: /sys/class/hwmon/hwmonX/currY_reset_history
667 Description: 636 Description:
668 Reset currX_lowest and currX_h 637 Reset currX_lowest and currX_highest
669 638
670 WO 639 WO
671 640
672 What: /sys/class/hwmon/hwmonX/curr_r 641 What: /sys/class/hwmon/hwmonX/curr_reset_history
673 Description: 642 Description:
674 Reset currX_lowest and currX_h 643 Reset currX_lowest and currX_highest for all sensors
675 644
676 WO 645 WO
677 646
678 What: /sys/class/hwmon/hwmonX/currY_ 647 What: /sys/class/hwmon/hwmonX/currY_enable
679 Description: 648 Description:
680 Enable or disable the sensors. 649 Enable or disable the sensors.
681 650
682 When disabled the sensor read 651 When disabled the sensor read will return -ENODATA.
683 652
684 - 1: Enable 653 - 1: Enable
685 - 0: Disable 654 - 0: Disable
686 655
687 RW 656 RW
688 657
689 What: /sys/class/hwmon/hwmonX/currY_ 658 What: /sys/class/hwmon/hwmonX/currY_rated_min
690 Description: 659 Description:
691 Minimum rated current. 660 Minimum rated current.
692 661
693 Unit: milliampere 662 Unit: milliampere
694 663
695 RO 664 RO
696 665
697 What: /sys/class/hwmon/hwmonX/currY_ 666 What: /sys/class/hwmon/hwmonX/currY_rated_max
698 Description: 667 Description:
699 Maximum rated current. 668 Maximum rated current.
700 669
701 Unit: milliampere 670 Unit: milliampere
702 671
703 RO 672 RO
704 673
705 What: /sys/class/hwmon/hwmonX/powerY 674 What: /sys/class/hwmon/hwmonX/powerY_average
706 Description: 675 Description:
707 Average power use 676 Average power use
708 677
709 Unit: microWatt 678 Unit: microWatt
710 679
711 RO 680 RO
712 681
713 What: /sys/class/hwmon/hwmonX/powerY 682 What: /sys/class/hwmon/hwmonX/powerY_average_interval
714 Description: 683 Description:
715 Power use averaging interval. 684 Power use averaging interval. A poll
716 notification is sent to this f 685 notification is sent to this file if the
717 hardware changes the averaging 686 hardware changes the averaging interval.
718 687
719 Unit: milliseconds 688 Unit: milliseconds
720 689
721 RW 690 RW
722 691
723 What: /sys/class/hwmon/hwmonX/powerY 692 What: /sys/class/hwmon/hwmonX/powerY_average_interval_max
724 Description: 693 Description:
725 Maximum power use averaging in 694 Maximum power use averaging interval
726 695
727 Unit: milliseconds 696 Unit: milliseconds
728 697
729 RO 698 RO
730 699
731 What: /sys/class/hwmon/hwmonX/powerY 700 What: /sys/class/hwmon/hwmonX/powerY_average_interval_min
732 Description: 701 Description:
733 Minimum power use averaging in 702 Minimum power use averaging interval
734 703
735 Unit: milliseconds 704 Unit: milliseconds
736 705
737 RO 706 RO
738 707
739 What: /sys/class/hwmon/hwmonX/powerY 708 What: /sys/class/hwmon/hwmonX/powerY_average_highest
740 Description: 709 Description:
741 Historical average maximum pow 710 Historical average maximum power use
742 711
743 Unit: microWatt 712 Unit: microWatt
744 713
745 RO 714 RO
746 715
747 What: /sys/class/hwmon/hwmonX/powerY 716 What: /sys/class/hwmon/hwmonX/powerY_average_lowest
748 Description: 717 Description:
749 Historical average minimum pow 718 Historical average minimum power use
750 719
751 Unit: microWatt 720 Unit: microWatt
752 721
753 RO 722 RO
754 723
755 What: /sys/class/hwmon/hwmonX/powerY 724 What: /sys/class/hwmon/hwmonX/powerY_average_max
756 Description: 725 Description:
757 A poll notification is sent to 726 A poll notification is sent to
758 `powerY_average` when power us 727 `powerY_average` when power use
759 rises above this value. 728 rises above this value.
760 729
761 Unit: microWatt 730 Unit: microWatt
762 731
763 RW 732 RW
764 733
765 What: /sys/class/hwmon/hwmonX/powerY 734 What: /sys/class/hwmon/hwmonX/powerY_average_min
766 Description: 735 Description:
767 A poll notification is sent to 736 A poll notification is sent to
768 `powerY_average` when power us 737 `powerY_average` when power use
769 sinks below this value. 738 sinks below this value.
770 739
771 Unit: microWatt 740 Unit: microWatt
772 741
773 RW 742 RW
774 743
775 What: /sys/class/hwmon/hwmonX/powerY 744 What: /sys/class/hwmon/hwmonX/powerY_input
776 Description: 745 Description:
777 Instantaneous power use 746 Instantaneous power use
778 747
779 Unit: microWatt 748 Unit: microWatt
780 749
781 RO 750 RO
782 751
783 What: /sys/class/hwmon/hwmonX/powerY 752 What: /sys/class/hwmon/hwmonX/powerY_input_highest
784 Description: 753 Description:
785 Historical maximum power use 754 Historical maximum power use
786 755
787 Unit: microWatt 756 Unit: microWatt
788 757
789 RO 758 RO
790 759
791 What: /sys/class/hwmon/hwmonX/powerY 760 What: /sys/class/hwmon/hwmonX/powerY_input_lowest
792 Description: 761 Description:
793 Historical minimum power use 762 Historical minimum power use
794 763
795 Unit: microWatt 764 Unit: microWatt
796 765
797 RO 766 RO
798 767
799 What: /sys/class/hwmon/hwmonX/powerY 768 What: /sys/class/hwmon/hwmonX/powerY_reset_history
800 Description: 769 Description:
801 Reset input_highest, input_low 770 Reset input_highest, input_lowest,
802 average_highest and average_lo 771 average_highest and average_lowest.
803 772
804 WO 773 WO
805 774
806 What: /sys/class/hwmon/hwmonX/powerY 775 What: /sys/class/hwmon/hwmonX/powerY_accuracy
807 Description: 776 Description:
808 Accuracy of the power meter. 777 Accuracy of the power meter.
809 778
810 Unit: Percent 779 Unit: Percent
811 780
812 RO 781 RO
813 782
814 What: /sys/class/hwmon/hwmonX/powerY 783 What: /sys/class/hwmon/hwmonX/powerY_cap
815 Description: 784 Description:
816 If power use rises above this 785 If power use rises above this limit, the
817 system should take action to r 786 system should take action to reduce power use.
818 A poll notification is sent to 787 A poll notification is sent to this file if the
819 cap is changed by the hardware 788 cap is changed by the hardware. The `*_cap`
820 files only appear if the cap i 789 files only appear if the cap is known to be
821 enforced by hardware. 790 enforced by hardware.
822 791
823 Unit: microWatt 792 Unit: microWatt
824 793
825 RW 794 RW
826 795
827 What: /sys/class/hwmon/hwmonX/powerY 796 What: /sys/class/hwmon/hwmonX/powerY_cap_hyst
828 Description: 797 Description:
829 Margin of hysteresis built aro 798 Margin of hysteresis built around capping and
830 notification. 799 notification.
831 800
832 Unit: microWatt 801 Unit: microWatt
833 802
834 RW 803 RW
835 804
836 What: /sys/class/hwmon/hwmonX/powerY 805 What: /sys/class/hwmon/hwmonX/powerY_cap_max
837 Description: 806 Description:
838 Maximum cap that can be set. 807 Maximum cap that can be set.
839 808
840 Unit: microWatt 809 Unit: microWatt
841 810
842 RO 811 RO
843 812
844 What: /sys/class/hwmon/hwmonX/powerY 813 What: /sys/class/hwmon/hwmonX/powerY_cap_min
845 Description: 814 Description:
846 Minimum cap that can be set. 815 Minimum cap that can be set.
847 816
848 Unit: microWatt 817 Unit: microWatt
849 818
850 RO 819 RO
851 820
852 What: /sys/class/hwmon/hwmonX/powerY 821 What: /sys/class/hwmon/hwmonX/powerY_max
853 Description: 822 Description:
854 Maximum power. 823 Maximum power.
855 824
856 Unit: microWatt 825 Unit: microWatt
857 826
858 RW 827 RW
859 828
860 What: /sys/class/hwmon/hwmonX/powerY 829 What: /sys/class/hwmon/hwmonX/powerY_crit
861 Description: 830 Description:
862 Critical maximum power. 831 Critical maximum power.
863 832
864 If power rises to or above thi 833 If power rises to or above this limit, the
865 system is expected take drasti 834 system is expected take drastic action to reduce
866 power consumption, such as a s 835 power consumption, such as a system shutdown or
867 a forced powerdown of some dev 836 a forced powerdown of some devices.
868 837
869 Unit: microWatt 838 Unit: microWatt
870 839
871 RW 840 RW
872 841
873 What: /sys/class/hwmon/hwmonX/powerY 842 What: /sys/class/hwmon/hwmonX/powerY_enable
874 Description: 843 Description:
875 Enable or disable the sensors. 844 Enable or disable the sensors.
876 845
877 When disabled the sensor read 846 When disabled the sensor read will return
878 -ENODATA. 847 -ENODATA.
879 848
880 - 1: Enable 849 - 1: Enable
881 - 0: Disable 850 - 0: Disable
882 851
883 RW 852 RW
884 853
885 What: /sys/class/hwmon/hwmonX/powerY 854 What: /sys/class/hwmon/hwmonX/powerY_rated_min
886 Description: 855 Description:
887 Minimum rated power. 856 Minimum rated power.
888 857
889 Unit: microWatt 858 Unit: microWatt
890 859
891 RO 860 RO
892 861
893 What: /sys/class/hwmon/hwmonX/powerY 862 What: /sys/class/hwmon/hwmonX/powerY_rated_max
894 Description: 863 Description:
895 Maximum rated power. 864 Maximum rated power.
896 865
897 Unit: microWatt 866 Unit: microWatt
898 867
899 RO 868 RO
900 869
901 What: /sys/class/hwmon/hwmonX/energy 870 What: /sys/class/hwmon/hwmonX/energyY_input
902 Description: 871 Description:
903 Cumulative energy use 872 Cumulative energy use
904 873
905 Unit: microJoule 874 Unit: microJoule
906 875
907 RO 876 RO
908 877
909 What: /sys/class/hwmon/hwmonX/energy 878 What: /sys/class/hwmon/hwmonX/energyY_enable
910 Description: 879 Description:
911 Enable or disable the sensors. 880 Enable or disable the sensors.
912 881
913 When disabled the sensor read 882 When disabled the sensor read will return
914 -ENODATA. 883 -ENODATA.
915 884
916 - 1: Enable 885 - 1: Enable
917 - 0: Disable 886 - 0: Disable
918 887
919 RW 888 RW
920 889
921 What: /sys/class/hwmon/hwmonX/humidi !! 890 What: /sys/class/hwmon/hwmonX/humidityY_input
922 Description: 891 Description:
923 Humidity limit detection !! 892 Humidity
924 893
925 - 0: OK !! 894 Unit: milli-percent (per cent mille, pcm)
926 - 1: Humidity limit has been r <<
927 895
928 RO 896 RO
929 897
>> 898
930 What: /sys/class/hwmon/hwmonX/humidi 899 What: /sys/class/hwmon/hwmonX/humidityY_enable
931 Description: 900 Description:
932 Enable or disable the sensors 901 Enable or disable the sensors
933 902
934 When disabled the sensor read 903 When disabled the sensor read will return
935 -ENODATA. 904 -ENODATA.
936 905
937 - 1: Enable 906 - 1: Enable
938 - 0: Disable 907 - 0: Disable
939 <<
940 RW <<
941 <<
942 What: /sys/class/hwmon/hwmonX/humidi <<
943 Description: <<
944 Reports a humidity sensor fail <<
945 <<
946 - 1: Failed <<
947 - 0: Ok <<
948 <<
949 RO <<
950 <<
951 What: /sys/class/hwmon/hwmonX/humidi <<
952 Description: <<
953 Humidity <<
954 <<
955 Unit: milli-percent (per cent <<
956 <<
957 RO <<
958 <<
959 What: /sys/class/hwmon/hwmonX/humidi <<
960 Description: <<
961 Suggested humidity channel lab <<
962 <<
963 Text string <<
964 <<
965 Should only be created if the <<
966 this humidity channel is being <<
967 doesn't. In all other cases, t <<
968 user-space. <<
969 <<
970 RO <<
971 <<
972 What: /sys/class/hwmon/hwmonX/humidi <<
973 Description: <<
974 Humidity max value. <<
975 <<
976 Unit: milli-percent (per cent <<
977 <<
978 RW <<
979 <<
980 What: /sys/class/hwmon/hwmonX/humidi <<
981 Description: <<
982 Maximum humidity detection <<
983 <<
984 - 0: OK <<
985 - 1: Maximum humidity detected <<
986 <<
987 RO <<
988 <<
989 What: /sys/class/hwmon/hwmonX/humidi <<
990 Description: <<
991 Humidity hysteresis value for <<
992 <<
993 Unit: milli-percent (per cent <<
994 <<
995 Must be reported as an absolut <<
996 from the max value. <<
997 <<
998 RW <<
999 <<
1000 What: /sys/class/hwmon/hwmonX/humid <<
1001 Description: <<
1002 Humidity min value. <<
1003 <<
1004 Unit: milli-percent (per cent <<
1005 <<
1006 RW <<
1007 <<
1008 What: /sys/class/hwmon/hwmonX/humid <<
1009 Description: <<
1010 Minimum humidity detection <<
1011 <<
1012 - 0: OK <<
1013 - 1: Minimum humidity detecte <<
1014 <<
1015 RO <<
1016 <<
1017 What: /sys/class/hwmon/hwmonX/humid <<
1018 Description: <<
1019 Humidity hysteresis value for <<
1020 <<
1021 Unit: milli-percent (per cent <<
1022 <<
1023 Must be reported as an absolu <<
1024 from the min value. <<
1025 908
1026 RW 909 RW
1027 910
1028 What: /sys/class/hwmon/hwmonX/humid 911 What: /sys/class/hwmon/hwmonX/humidityY_rated_min
1029 Description: 912 Description:
1030 Minimum rated humidity. 913 Minimum rated humidity.
1031 914
1032 Unit: milli-percent (per cent 915 Unit: milli-percent (per cent mille, pcm)
1033 916
1034 RO 917 RO
1035 918
1036 What: /sys/class/hwmon/hwmonX/humid 919 What: /sys/class/hwmon/hwmonX/humidityY_rated_max
1037 Description: 920 Description:
1038 Maximum rated humidity. 921 Maximum rated humidity.
1039 922
1040 Unit: milli-percent (per cent 923 Unit: milli-percent (per cent mille, pcm)
1041 924
1042 RO 925 RO
1043 926
1044 927
1045 What: /sys/class/hwmon/hwmonX/intru 928 What: /sys/class/hwmon/hwmonX/intrusionY_alarm
1046 Description: 929 Description:
1047 Chassis intrusion detection 930 Chassis intrusion detection
1048 931
1049 - 0: OK 932 - 0: OK
1050 - 1: intrusion detected 933 - 1: intrusion detected
1051 934
1052 RW 935 RW
1053 936
1054 Contrary to regular alarm fla 937 Contrary to regular alarm flags which clear themselves
1055 automatically when read, this 938 automatically when read, this one sticks until cleared by
1056 the user. This is done by wri 939 the user. This is done by writing 0 to the file. Writing
1057 other values is unsupported. 940 other values is unsupported.
1058 941
1059 What: /sys/class/hwmon/hwmonX/intru 942 What: /sys/class/hwmon/hwmonX/intrusionY_beep
1060 Description: 943 Description:
1061 Chassis intrusion beep 944 Chassis intrusion beep
1062 945
1063 - 0: disable 946 - 0: disable
1064 - 1: enable 947 - 1: enable
1065 948
1066 RW 949 RW
1067 950
1068 What: /sys/class/hwmon/hwmonX/devic 951 What: /sys/class/hwmon/hwmonX/device/pec
1069 Description: 952 Description:
1070 PEC support on I2C devices 953 PEC support on I2C devices
1071 954
1072 - 0, off, n: disable 955 - 0, off, n: disable
1073 - 1, on, y: enable 956 - 1, on, y: enable
1074 957
1075 RW 958 RW
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