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 <<
289 Description: <<
290 Reports if a fan has reported <<
291 <<
292 - 1: Failed <<
293 - 0: Ok <<
294 <<
295 RO <<
296 <<
297 What: /sys/class/hwmon/hwmonX/pwmY 279 What: /sys/class/hwmon/hwmonX/pwmY
298 Description: 280 Description:
299 Pulse width modulation fan con 281 Pulse width modulation fan control.
300 282
301 Integer value in the range 0 t 283 Integer value in the range 0 to 255
302 284
303 RW 285 RW
304 286
305 255 is max or 100%. 287 255 is max or 100%.
306 288
307 What: /sys/class/hwmon/hwmonX/pwmY_e 289 What: /sys/class/hwmon/hwmonX/pwmY_enable
308 Description: 290 Description:
309 Fan speed control method: 291 Fan speed control method:
310 292
311 - 0: no fan speed control (i.e 293 - 0: no fan speed control (i.e. fan at full speed)
312 - 1: manual fan speed control 294 - 1: manual fan speed control enabled (using `pwmY`)
313 - 2+: automatic fan speed cont 295 - 2+: automatic fan speed control enabled
314 296
315 Check individual chip document 297 Check individual chip documentation files for automatic mode
316 details. 298 details.
317 299
318 RW 300 RW
319 301
320 What: /sys/class/hwmon/hwmonX/pwmY_m 302 What: /sys/class/hwmon/hwmonX/pwmY_mode
321 Description: 303 Description:
322 - 0: DC mode (direct current) 304 - 0: DC mode (direct current)
323 - 1: PWM mode (pulse-width mod 305 - 1: PWM mode (pulse-width modulation)
324 306
325 RW 307 RW
326 308
327 What: /sys/class/hwmon/hwmonX/pwmY_f 309 What: /sys/class/hwmon/hwmonX/pwmY_freq
328 Description: 310 Description:
329 Base PWM frequency in Hz. 311 Base PWM frequency in Hz.
330 312
331 Only possibly available when p 313 Only possibly available when pwmN_mode is PWM, but not always
332 present even then. 314 present even then.
333 315
334 RW 316 RW
335 317
336 What: /sys/class/hwmon/hwmonX/pwmY_a 318 What: /sys/class/hwmon/hwmonX/pwmY_auto_channels_temp
337 Description: 319 Description:
338 Select which temperature chann 320 Select which temperature channels affect this PWM output in
339 auto mode. 321 auto mode.
340 322
341 Bitfield, 1 is temp1, 2 is tem 323 Bitfield, 1 is temp1, 2 is temp2, 4 is temp3 etc...
342 Which values are possible depe 324 Which values are possible depend on the chip used.
343 325
344 RW 326 RW
345 327
346 What: /sys/class/hwmon/hwmonX/pwmY_a 328 What: /sys/class/hwmon/hwmonX/pwmY_auto_pointZ_pwm
347 What: /sys/class/hwmon/hwmonX/pwmY_a 329 What: /sys/class/hwmon/hwmonX/pwmY_auto_pointZ_temp
348 What: /sys/class/hwmon/hwmonX/pwmY_a 330 What: /sys/class/hwmon/hwmonX/pwmY_auto_pointZ_temp_hyst
349 Description: 331 Description:
350 Define the PWM vs temperature 332 Define the PWM vs temperature curve.
351 333
352 Number of trip points is chip- 334 Number of trip points is chip-dependent. Use this for chips
353 which associate trip points to 335 which associate trip points to PWM output channels.
354 336
355 RW 337 RW
356 338
357 What: /sys/class/hwmon/hwmonX/tempY_ 339 What: /sys/class/hwmon/hwmonX/tempY_auto_pointZ_pwm
358 What: /sys/class/hwmon/hwmonX/tempY_ 340 What: /sys/class/hwmon/hwmonX/tempY_auto_pointZ_temp
359 What: /sys/class/hwmon/hwmonX/tempY_ 341 What: /sys/class/hwmon/hwmonX/tempY_auto_pointZ_temp_hyst
360 Description: 342 Description:
361 Define the PWM vs temperature 343 Define the PWM vs temperature curve.
362 344
363 Number of trip points is chip- 345 Number of trip points is chip-dependent. Use this for chips
364 which associate trip points to 346 which associate trip points to temperature channels.
365 347
366 RW 348 RW
367 349
368 What: /sys/class/hwmon/hwmonX/tempY_ 350 What: /sys/class/hwmon/hwmonX/tempY_type
369 Description: 351 Description:
370 Sensor type selection. 352 Sensor type selection.
371 353
372 Integers 1 to 6 354 Integers 1 to 6
373 355
374 RW 356 RW
375 357
376 - 1: CPU embedded diode 358 - 1: CPU embedded diode
377 - 2: 3904 transistor 359 - 2: 3904 transistor
378 - 3: thermal diode 360 - 3: thermal diode
379 - 4: thermistor 361 - 4: thermistor
380 - 5: AMD AMDSI 362 - 5: AMD AMDSI
381 - 6: Intel PECI 363 - 6: Intel PECI
382 364
383 Not all types are supported by 365 Not all types are supported by all chips
384 366
385 What: /sys/class/hwmon/hwmonX/tempY_ 367 What: /sys/class/hwmon/hwmonX/tempY_max
386 Description: 368 Description:
387 Temperature max value. 369 Temperature max value.
388 370
389 Unit: millidegree Celsius (or 371 Unit: millidegree Celsius (or millivolt, see below)
390 372
391 RW 373 RW
392 374
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_ 375 What: /sys/class/hwmon/hwmonX/tempY_min
403 Description: 376 Description:
404 Temperature min value. 377 Temperature min value.
405 378
406 Unit: millidegree Celsius 379 Unit: millidegree Celsius
407 380
408 RW 381 RW
409 382
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_ 383 What: /sys/class/hwmon/hwmonX/tempY_max_hyst
420 Description: 384 Description:
421 Temperature hysteresis value f 385 Temperature hysteresis value for max limit.
422 386
423 Unit: millidegree Celsius 387 Unit: millidegree Celsius
424 388
425 Must be reported as an absolut 389 Must be reported as an absolute temperature, NOT a delta
426 from the max value. 390 from the max value.
427 391
428 RW 392 RW
429 393
430 What: /sys/class/hwmon/hwmonX/tempY_ 394 What: /sys/class/hwmon/hwmonX/tempY_min_hyst
431 Description: 395 Description:
432 Temperature hysteresis value f 396 Temperature hysteresis value for min limit.
433 Unit: millidegree Celsius 397 Unit: millidegree Celsius
434 398
435 Must be reported as an absolut 399 Must be reported as an absolute temperature, NOT a delta
436 from the min value. 400 from the min value.
437 401
438 RW 402 RW
439 403
440 What: /sys/class/hwmon/hwmonX/tempY_ 404 What: /sys/class/hwmon/hwmonX/tempY_input
441 Description: 405 Description:
442 Temperature input value. 406 Temperature input value.
443 407
444 Unit: millidegree Celsius 408 Unit: millidegree Celsius
445 409
446 RO 410 RO
447 411
448 What: /sys/class/hwmon/hwmonX/tempY_ 412 What: /sys/class/hwmon/hwmonX/tempY_crit
449 Description: 413 Description:
450 Temperature critical max value 414 Temperature critical max value, typically greater than
451 corresponding temp_max values. 415 corresponding temp_max values.
452 416
453 Unit: millidegree Celsius 417 Unit: millidegree Celsius
454 418
455 RW 419 RW
456 420
457 What: /sys/class/hwmon/hwmonX/tempY_ 421 What: /sys/class/hwmon/hwmonX/tempY_crit_alarm
458 Description: 422 Description:
459 Critical high temperature alar 423 Critical high temperature alarm flag.
460 424
461 - 0: OK 425 - 0: OK
462 - 1: temperature has reached t 426 - 1: temperature has reached tempY_crit
463 427
464 RO !! 428 RW
>> 429
>> 430 Contrary to regular alarm flags which clear themselves
>> 431 automatically when read, this one sticks until cleared by
>> 432 the user. This is done by writing 0 to the file. Writing
>> 433 other values is unsupported.
465 434
466 What: /sys/class/hwmon/hwmonX/tempY_ 435 What: /sys/class/hwmon/hwmonX/tempY_crit_hyst
467 Description: 436 Description:
468 Temperature hysteresis value f 437 Temperature hysteresis value for critical limit.
469 438
470 Unit: millidegree Celsius 439 Unit: millidegree Celsius
471 440
472 Must be reported as an absolut 441 Must be reported as an absolute temperature, NOT a delta
473 from the critical value. 442 from the critical value.
474 443
475 RW 444 RW
476 445
477 What: /sys/class/hwmon/hwmonX/tempY_ 446 What: /sys/class/hwmon/hwmonX/tempY_emergency
478 Description: 447 Description:
479 Temperature emergency max valu 448 Temperature emergency max value, for chips supporting more than
480 two upper temperature limits. 449 two upper temperature limits. Must be equal or greater than
481 corresponding temp_crit values 450 corresponding temp_crit values.
482 451
483 Unit: millidegree Celsius 452 Unit: millidegree Celsius
484 453
485 RW 454 RW
486 455
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_ 456 What: /sys/class/hwmon/hwmonX/tempY_emergency_hyst
497 Description: 457 Description:
498 Temperature hysteresis value f 458 Temperature hysteresis value for emergency limit.
499 459
500 Unit: millidegree Celsius 460 Unit: millidegree Celsius
501 461
502 Must be reported as an absolut 462 Must be reported as an absolute temperature, NOT a delta
503 from the emergency value. 463 from the emergency value.
504 464
505 RW 465 RW
506 466
507 What: /sys/class/hwmon/hwmonX/tempY_ 467 What: /sys/class/hwmon/hwmonX/tempY_lcrit
508 Description: 468 Description:
509 Temperature critical min value 469 Temperature critical min value, typically lower than
510 corresponding temp_min values. 470 corresponding temp_min values.
511 471
512 Unit: millidegree Celsius 472 Unit: millidegree Celsius
513 473
514 RW 474 RW
515 475
516 What: /sys/class/hwmon/hwmonX/tempY_ 476 What: /sys/class/hwmon/hwmonX/tempY_lcrit_hyst
517 Description: 477 Description:
518 Temperature hysteresis value f 478 Temperature hysteresis value for critical min limit.
519 479
520 Unit: millidegree Celsius 480 Unit: millidegree Celsius
521 481
522 Must be reported as an absolut 482 Must be reported as an absolute temperature, NOT a delta
523 from the critical min value. 483 from the critical min value.
524 484
525 RW 485 RW
526 486
527 What: /sys/class/hwmon/hwmonX/tempY_ 487 What: /sys/class/hwmon/hwmonX/tempY_offset
528 Description: 488 Description:
529 Temperature offset which is ad 489 Temperature offset which is added to the temperature reading
530 by the chip. 490 by the chip.
531 491
532 Unit: millidegree Celsius 492 Unit: millidegree Celsius
533 493
534 Read/Write value. 494 Read/Write value.
535 495
536 What: /sys/class/hwmon/hwmonX/tempY_ 496 What: /sys/class/hwmon/hwmonX/tempY_label
537 Description: 497 Description:
538 Suggested temperature channel 498 Suggested temperature channel label.
539 499
540 Text string 500 Text string
541 501
542 Should only be created if the 502 Should only be created if the driver has hints about what
543 this temperature channel is be 503 this temperature channel is being used for, and user-space
544 doesn't. In all other cases, t 504 doesn't. In all other cases, the label is provided by
545 user-space. 505 user-space.
546 506
547 RO 507 RO
548 508
549 What: /sys/class/hwmon/hwmonX/tempY_ 509 What: /sys/class/hwmon/hwmonX/tempY_lowest
550 Description: 510 Description:
551 Historical minimum temperature 511 Historical minimum temperature
552 512
553 Unit: millidegree Celsius 513 Unit: millidegree Celsius
554 514
555 RO 515 RO
556 516
557 What: /sys/class/hwmon/hwmonX/tempY_ 517 What: /sys/class/hwmon/hwmonX/tempY_highest
558 Description: 518 Description:
559 Historical maximum temperature 519 Historical maximum temperature
560 520
561 Unit: millidegree Celsius 521 Unit: millidegree Celsius
562 522
563 RO 523 RO
564 524
565 What: /sys/class/hwmon/hwmonX/tempY_ 525 What: /sys/class/hwmon/hwmonX/tempY_reset_history
566 Description: 526 Description:
567 Reset temp_lowest and temp_hig 527 Reset temp_lowest and temp_highest
568 528
569 WO 529 WO
570 530
571 What: /sys/class/hwmon/hwmonX/temp_r 531 What: /sys/class/hwmon/hwmonX/temp_reset_history
572 Description: 532 Description:
573 Reset temp_lowest and temp_hig 533 Reset temp_lowest and temp_highest for all sensors
574 534
575 WO 535 WO
576 536
577 What: /sys/class/hwmon/hwmonX/tempY_ 537 What: /sys/class/hwmon/hwmonX/tempY_enable
578 Description: 538 Description:
579 Enable or disable the sensors. 539 Enable or disable the sensors.
580 540
581 When disabled the sensor read 541 When disabled the sensor read will return -ENODATA.
582 542
583 - 1: Enable 543 - 1: Enable
584 - 0: Disable 544 - 0: Disable
585 545
586 RW 546 RW
587 547
588 What: /sys/class/hwmon/hwmonX/tempY_ 548 What: /sys/class/hwmon/hwmonX/tempY_rated_min
589 Description: 549 Description:
590 Minimum rated temperature. 550 Minimum rated temperature.
591 551
592 Unit: millidegree Celsius 552 Unit: millidegree Celsius
593 553
594 RO 554 RO
595 555
596 What: /sys/class/hwmon/hwmonX/tempY_ 556 What: /sys/class/hwmon/hwmonX/tempY_rated_max
597 Description: 557 Description:
598 Maximum rated temperature. 558 Maximum rated temperature.
599 559
600 Unit: millidegree Celsius 560 Unit: millidegree Celsius
601 561
602 RO 562 RO
603 563
604 What: /sys/class/hwmon/hwmonX/currY_ 564 What: /sys/class/hwmon/hwmonX/currY_max
605 Description: 565 Description:
606 Current max value 566 Current max value
607 567
608 Unit: milliampere 568 Unit: milliampere
609 569
610 RW 570 RW
611 571
612 What: /sys/class/hwmon/hwmonX/currY_ 572 What: /sys/class/hwmon/hwmonX/currY_min
613 Description: 573 Description:
614 Current min value. 574 Current min value.
615 575
616 Unit: milliampere 576 Unit: milliampere
617 577
618 RW 578 RW
619 579
620 What: /sys/class/hwmon/hwmonX/currY_ 580 What: /sys/class/hwmon/hwmonX/currY_lcrit
621 Description: 581 Description:
622 Current critical low value 582 Current critical low value
623 583
624 Unit: milliampere 584 Unit: milliampere
625 585
626 RW 586 RW
627 587
628 What: /sys/class/hwmon/hwmonX/currY_ 588 What: /sys/class/hwmon/hwmonX/currY_crit
629 Description: 589 Description:
630 Current critical high value. 590 Current critical high value.
631 591
632 Unit: milliampere 592 Unit: milliampere
633 593
634 RW 594 RW
635 595
636 What: /sys/class/hwmon/hwmonX/currY_ 596 What: /sys/class/hwmon/hwmonX/currY_input
637 Description: 597 Description:
638 Current input value 598 Current input value
639 599
640 Unit: milliampere 600 Unit: milliampere
641 601
642 RO 602 RO
643 603
644 What: /sys/class/hwmon/hwmonX/currY_ 604 What: /sys/class/hwmon/hwmonX/currY_average
645 Description: 605 Description:
646 Average current use 606 Average current use
647 607
648 Unit: milliampere 608 Unit: milliampere
649 609
650 RO 610 RO
651 611
652 What: /sys/class/hwmon/hwmonX/currY_ 612 What: /sys/class/hwmon/hwmonX/currY_lowest
653 Description: 613 Description:
654 Historical minimum current 614 Historical minimum current
655 615
656 Unit: milliampere 616 Unit: milliampere
657 617
658 RO 618 RO
659 619
660 What: /sys/class/hwmon/hwmonX/currY_ 620 What: /sys/class/hwmon/hwmonX/currY_highest
661 Description: 621 Description:
662 Historical maximum current 622 Historical maximum current
663 Unit: milliampere 623 Unit: milliampere
664 RO 624 RO
665 625
666 What: /sys/class/hwmon/hwmonX/currY_ 626 What: /sys/class/hwmon/hwmonX/currY_reset_history
667 Description: 627 Description:
668 Reset currX_lowest and currX_h 628 Reset currX_lowest and currX_highest
669 629
670 WO 630 WO
671 631
672 What: /sys/class/hwmon/hwmonX/curr_r 632 What: /sys/class/hwmon/hwmonX/curr_reset_history
673 Description: 633 Description:
674 Reset currX_lowest and currX_h 634 Reset currX_lowest and currX_highest for all sensors
675 635
676 WO 636 WO
677 637
678 What: /sys/class/hwmon/hwmonX/currY_ 638 What: /sys/class/hwmon/hwmonX/currY_enable
679 Description: 639 Description:
680 Enable or disable the sensors. 640 Enable or disable the sensors.
681 641
682 When disabled the sensor read 642 When disabled the sensor read will return -ENODATA.
683 643
684 - 1: Enable 644 - 1: Enable
685 - 0: Disable 645 - 0: Disable
686 646
687 RW 647 RW
688 648
689 What: /sys/class/hwmon/hwmonX/currY_ 649 What: /sys/class/hwmon/hwmonX/currY_rated_min
690 Description: 650 Description:
691 Minimum rated current. 651 Minimum rated current.
692 652
693 Unit: milliampere 653 Unit: milliampere
694 654
695 RO 655 RO
696 656
697 What: /sys/class/hwmon/hwmonX/currY_ 657 What: /sys/class/hwmon/hwmonX/currY_rated_max
698 Description: 658 Description:
699 Maximum rated current. 659 Maximum rated current.
700 660
701 Unit: milliampere 661 Unit: milliampere
702 662
703 RO 663 RO
704 664
705 What: /sys/class/hwmon/hwmonX/powerY 665 What: /sys/class/hwmon/hwmonX/powerY_average
706 Description: 666 Description:
707 Average power use 667 Average power use
708 668
709 Unit: microWatt 669 Unit: microWatt
710 670
711 RO 671 RO
712 672
713 What: /sys/class/hwmon/hwmonX/powerY 673 What: /sys/class/hwmon/hwmonX/powerY_average_interval
714 Description: 674 Description:
715 Power use averaging interval. 675 Power use averaging interval. A poll
716 notification is sent to this f 676 notification is sent to this file if the
717 hardware changes the averaging 677 hardware changes the averaging interval.
718 678
719 Unit: milliseconds 679 Unit: milliseconds
720 680
721 RW 681 RW
722 682
723 What: /sys/class/hwmon/hwmonX/powerY 683 What: /sys/class/hwmon/hwmonX/powerY_average_interval_max
724 Description: 684 Description:
725 Maximum power use averaging in 685 Maximum power use averaging interval
726 686
727 Unit: milliseconds 687 Unit: milliseconds
728 688
729 RO 689 RO
730 690
731 What: /sys/class/hwmon/hwmonX/powerY 691 What: /sys/class/hwmon/hwmonX/powerY_average_interval_min
732 Description: 692 Description:
733 Minimum power use averaging in 693 Minimum power use averaging interval
734 694
735 Unit: milliseconds 695 Unit: milliseconds
736 696
737 RO 697 RO
738 698
739 What: /sys/class/hwmon/hwmonX/powerY 699 What: /sys/class/hwmon/hwmonX/powerY_average_highest
740 Description: 700 Description:
741 Historical average maximum pow 701 Historical average maximum power use
742 702
743 Unit: microWatt 703 Unit: microWatt
744 704
745 RO 705 RO
746 706
747 What: /sys/class/hwmon/hwmonX/powerY 707 What: /sys/class/hwmon/hwmonX/powerY_average_lowest
748 Description: 708 Description:
749 Historical average minimum pow 709 Historical average minimum power use
750 710
751 Unit: microWatt 711 Unit: microWatt
752 712
753 RO 713 RO
754 714
755 What: /sys/class/hwmon/hwmonX/powerY 715 What: /sys/class/hwmon/hwmonX/powerY_average_max
756 Description: 716 Description:
757 A poll notification is sent to 717 A poll notification is sent to
758 `powerY_average` when power us 718 `powerY_average` when power use
759 rises above this value. 719 rises above this value.
760 720
761 Unit: microWatt 721 Unit: microWatt
762 722
763 RW 723 RW
764 724
765 What: /sys/class/hwmon/hwmonX/powerY 725 What: /sys/class/hwmon/hwmonX/powerY_average_min
766 Description: 726 Description:
767 A poll notification is sent to 727 A poll notification is sent to
768 `powerY_average` when power us 728 `powerY_average` when power use
769 sinks below this value. 729 sinks below this value.
770 730
771 Unit: microWatt 731 Unit: microWatt
772 732
773 RW 733 RW
774 734
775 What: /sys/class/hwmon/hwmonX/powerY 735 What: /sys/class/hwmon/hwmonX/powerY_input
776 Description: 736 Description:
777 Instantaneous power use 737 Instantaneous power use
778 738
779 Unit: microWatt 739 Unit: microWatt
780 740
781 RO 741 RO
782 742
783 What: /sys/class/hwmon/hwmonX/powerY 743 What: /sys/class/hwmon/hwmonX/powerY_input_highest
784 Description: 744 Description:
785 Historical maximum power use 745 Historical maximum power use
786 746
787 Unit: microWatt 747 Unit: microWatt
788 748
789 RO 749 RO
790 750
791 What: /sys/class/hwmon/hwmonX/powerY 751 What: /sys/class/hwmon/hwmonX/powerY_input_lowest
792 Description: 752 Description:
793 Historical minimum power use 753 Historical minimum power use
794 754
795 Unit: microWatt 755 Unit: microWatt
796 756
797 RO 757 RO
798 758
799 What: /sys/class/hwmon/hwmonX/powerY 759 What: /sys/class/hwmon/hwmonX/powerY_reset_history
800 Description: 760 Description:
801 Reset input_highest, input_low 761 Reset input_highest, input_lowest,
802 average_highest and average_lo 762 average_highest and average_lowest.
803 763
804 WO 764 WO
805 765
806 What: /sys/class/hwmon/hwmonX/powerY 766 What: /sys/class/hwmon/hwmonX/powerY_accuracy
807 Description: 767 Description:
808 Accuracy of the power meter. 768 Accuracy of the power meter.
809 769
810 Unit: Percent 770 Unit: Percent
811 771
812 RO 772 RO
813 773
814 What: /sys/class/hwmon/hwmonX/powerY 774 What: /sys/class/hwmon/hwmonX/powerY_cap
815 Description: 775 Description:
816 If power use rises above this 776 If power use rises above this limit, the
817 system should take action to r 777 system should take action to reduce power use.
818 A poll notification is sent to 778 A poll notification is sent to this file if the
819 cap is changed by the hardware 779 cap is changed by the hardware. The `*_cap`
820 files only appear if the cap i 780 files only appear if the cap is known to be
821 enforced by hardware. 781 enforced by hardware.
822 782
823 Unit: microWatt 783 Unit: microWatt
824 784
825 RW 785 RW
826 786
827 What: /sys/class/hwmon/hwmonX/powerY 787 What: /sys/class/hwmon/hwmonX/powerY_cap_hyst
828 Description: 788 Description:
829 Margin of hysteresis built aro 789 Margin of hysteresis built around capping and
830 notification. 790 notification.
831 791
832 Unit: microWatt 792 Unit: microWatt
833 793
834 RW 794 RW
835 795
836 What: /sys/class/hwmon/hwmonX/powerY 796 What: /sys/class/hwmon/hwmonX/powerY_cap_max
837 Description: 797 Description:
838 Maximum cap that can be set. 798 Maximum cap that can be set.
839 799
840 Unit: microWatt 800 Unit: microWatt
841 801
842 RO 802 RO
843 803
844 What: /sys/class/hwmon/hwmonX/powerY 804 What: /sys/class/hwmon/hwmonX/powerY_cap_min
845 Description: 805 Description:
846 Minimum cap that can be set. 806 Minimum cap that can be set.
847 807
848 Unit: microWatt 808 Unit: microWatt
849 809
850 RO 810 RO
851 811
852 What: /sys/class/hwmon/hwmonX/powerY 812 What: /sys/class/hwmon/hwmonX/powerY_max
853 Description: 813 Description:
854 Maximum power. 814 Maximum power.
855 815
856 Unit: microWatt 816 Unit: microWatt
857 817
858 RW 818 RW
859 819
860 What: /sys/class/hwmon/hwmonX/powerY 820 What: /sys/class/hwmon/hwmonX/powerY_crit
861 Description: 821 Description:
862 Critical maximum power. 822 Critical maximum power.
863 823
864 If power rises to or above thi 824 If power rises to or above this limit, the
865 system is expected take drasti 825 system is expected take drastic action to reduce
866 power consumption, such as a s 826 power consumption, such as a system shutdown or
867 a forced powerdown of some dev 827 a forced powerdown of some devices.
868 828
869 Unit: microWatt 829 Unit: microWatt
870 830
871 RW 831 RW
872 832
873 What: /sys/class/hwmon/hwmonX/powerY 833 What: /sys/class/hwmon/hwmonX/powerY_enable
874 Description: 834 Description:
875 Enable or disable the sensors. 835 Enable or disable the sensors.
876 836
877 When disabled the sensor read 837 When disabled the sensor read will return
878 -ENODATA. 838 -ENODATA.
879 839
880 - 1: Enable 840 - 1: Enable
881 - 0: Disable 841 - 0: Disable
882 842
883 RW 843 RW
884 844
885 What: /sys/class/hwmon/hwmonX/powerY 845 What: /sys/class/hwmon/hwmonX/powerY_rated_min
886 Description: 846 Description:
887 Minimum rated power. 847 Minimum rated power.
888 848
889 Unit: microWatt 849 Unit: microWatt
890 850
891 RO 851 RO
892 852
893 What: /sys/class/hwmon/hwmonX/powerY 853 What: /sys/class/hwmon/hwmonX/powerY_rated_max
894 Description: 854 Description:
895 Maximum rated power. 855 Maximum rated power.
896 856
897 Unit: microWatt 857 Unit: microWatt
898 858
899 RO 859 RO
900 860
901 What: /sys/class/hwmon/hwmonX/energy 861 What: /sys/class/hwmon/hwmonX/energyY_input
902 Description: 862 Description:
903 Cumulative energy use 863 Cumulative energy use
904 864
905 Unit: microJoule 865 Unit: microJoule
906 866
907 RO 867 RO
908 868
909 What: /sys/class/hwmon/hwmonX/energy 869 What: /sys/class/hwmon/hwmonX/energyY_enable
910 Description: 870 Description:
911 Enable or disable the sensors. 871 Enable or disable the sensors.
912 872
913 When disabled the sensor read 873 When disabled the sensor read will return
914 -ENODATA. 874 -ENODATA.
915 875
916 - 1: Enable 876 - 1: Enable
917 - 0: Disable 877 - 0: Disable
918 878
919 RW 879 RW
920 880
921 What: /sys/class/hwmon/hwmonX/humidi !! 881 What: /sys/class/hwmon/hwmonX/humidityY_input
922 Description: 882 Description:
923 Humidity limit detection !! 883 Humidity
924 884
925 - 0: OK !! 885 Unit: milli-percent (per cent mille, pcm)
926 - 1: Humidity limit has been r <<
927 886
928 RO 887 RO
929 888
>> 889
930 What: /sys/class/hwmon/hwmonX/humidi 890 What: /sys/class/hwmon/hwmonX/humidityY_enable
931 Description: 891 Description:
932 Enable or disable the sensors 892 Enable or disable the sensors
933 893
934 When disabled the sensor read 894 When disabled the sensor read will return
935 -ENODATA. 895 -ENODATA.
936 896
937 - 1: Enable 897 - 1: Enable
938 - 0: Disable 898 - 0: Disable
939 899
940 RW 900 RW
941 901
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 <<
1026 RW <<
1027 <<
1028 What: /sys/class/hwmon/hwmonX/humid 902 What: /sys/class/hwmon/hwmonX/humidityY_rated_min
1029 Description: 903 Description:
1030 Minimum rated humidity. 904 Minimum rated humidity.
1031 905
1032 Unit: milli-percent (per cent 906 Unit: milli-percent (per cent mille, pcm)
1033 907
1034 RO 908 RO
1035 909
1036 What: /sys/class/hwmon/hwmonX/humid 910 What: /sys/class/hwmon/hwmonX/humidityY_rated_max
1037 Description: 911 Description:
1038 Maximum rated humidity. 912 Maximum rated humidity.
1039 913
1040 Unit: milli-percent (per cent 914 Unit: milli-percent (per cent mille, pcm)
1041 915
1042 RO 916 RO
1043 917
1044 918
1045 What: /sys/class/hwmon/hwmonX/intru 919 What: /sys/class/hwmon/hwmonX/intrusionY_alarm
1046 Description: 920 Description:
1047 Chassis intrusion detection 921 Chassis intrusion detection
1048 922
1049 - 0: OK 923 - 0: OK
1050 - 1: intrusion detected 924 - 1: intrusion detected
1051 925
1052 RW 926 RW
1053 927
1054 Contrary to regular alarm fla 928 Contrary to regular alarm flags which clear themselves
1055 automatically when read, this 929 automatically when read, this one sticks until cleared by
1056 the user. This is done by wri 930 the user. This is done by writing 0 to the file. Writing
1057 other values is unsupported. 931 other values is unsupported.
1058 932
1059 What: /sys/class/hwmon/hwmonX/intru 933 What: /sys/class/hwmon/hwmonX/intrusionY_beep
1060 Description: 934 Description:
1061 Chassis intrusion beep 935 Chassis intrusion beep
1062 936
1063 - 0: disable 937 - 0: disable
1064 - 1: enable 938 - 1: enable
1065 <<
1066 RW <<
1067 <<
1068 What: /sys/class/hwmon/hwmonX/devic <<
1069 Description: <<
1070 PEC support on I2C devices <<
1071 <<
1072 - 0, off, n: disable <<
1073 - 1, on, y: enable <<
1074 939
1075 RW 940 RW
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