1 What: /sys/class/thermal/thermal_zon
2 Description:
3 Strings which represent the th
4 This is given by thermal zone
5 E.g: "acpitz" indicates it's a
6 In order to keep it consistent
7 should be a short, lowercase s
8 dashes.
9
10 RO, Required
11
12 What: /sys/class/thermal/thermal_zon
13 Description:
14 Current temperature as reporte
15
16 Unit: millidegree Celsius
17
18 RO, Required
19
20 What: /sys/class/thermal/thermal_zon
21 Description:
22 One of the predefined values i
23 This file gives information ab
24 currently managing the thermal
25 kernel based algorithm or user
26
27 enabled
28 enable Kernel
29 disabled
30 Preventing ker
31 trip points so
32 charge of the
33
34 RW, Optional
35
36 What: /sys/class/thermal/thermal_zon
37 Description:
38 One of the various thermal gov
39
40 RW, Required
41
42 What: /sys/class/thermal/thermal_zon
43 Description:
44 Available thermal governors wh
45 particular zone.
46
47 RO, Required
48
49 What: /sys/class/thermal/thermal_zon
50 Description:
51 The temperature above which tr
52
53 Unit: millidegree Celsius
54
55 RO, Optional
56
57 What: /sys/class/thermal/thermal_zon
58 Description:
59 Strings which indicate the typ
60
61 E.g. it can be one of critical
62 for ACPI thermal zone.
63
64 RO, Optional
65
66 What: /sys/class/thermal/thermal_zon
67 Description:
68 The hysteresis value for a tri
69 integer.
70
71 Unit: Celsius
72
73 RW, Optional
74
75 What: /sys/class/thermal/thermal_zon
76 Description:
77 Sysfs link to the thermal cooling devi
78 for cooling device throttling control
79
80 RO, Optional
81
82 What: /sys/class/thermal/thermal_zon
83 Description:
84 The trip point in this thermal
85 associated with; -1 means the
86 associated with any trip point
87
88 RO, Optional
89
90 What: /sys/class/thermal/thermal_zon
91 Description:
92 The influence of `cdev[0-*]` i
93 is relative to the rest of coo
94 zone. For example, if a coolin
95 than that of other, it's twice
96 thermal zone.
97
98 RW, Optional
99
100 What: /sys/class/thermal/thermal_zon
101 Description:
102 Interface to set the emulated
103 (sensor). After setting this t
104 pass this temperature to platf
105 registered or cache it locally
106 different temperature threshol
107 action. This is write only nod
108 should disable emulation.
109
110 Unit: millidegree Celsius
111
112 WO, Optional
113
114 WARNING:
115 Be careful while enabling
116 because userland can easil
117 flooding this sysfs node w
118
119
120 What: /sys/class/thermal/thermal_zon
121 Description:
122 The derivative term of the pow
123 controller. For more informati
124 Documentation/driver-api/therm
125
126 RW, Optional
127
128 What: /sys/class/thermal/thermal_zon
129 Description:
130 The integral term of the power
131 controller. This term allows t
132 for long term drift. For more
133 Documentation/driver-api/therm
134
135 RW, Optional
136
137 What: /sys/class/thermal/thermal_zon
138 Description:
139 The proportional term of the p
140 controller during temperature
141 is when the current temperatur
142 temperature" trip point. For m
143 Documentation/driver-api/therm
144
145 RW, Optional
146
147 What: /sys/class/thermal/thermal_zon
148 Description:
149 The proportional term of the p
150 controller during temperature
151 is when the current temperatur
152 temperature" trip point. For m
153 Documentation/driver-api/therm
154
155 RW, Optional
156
157 What: /sys/class/thermal/thermal_zon
158 Description:
159 Temperature offset from the de
160 above which the integral term
161 governor's PID controller star
162 example, if integral_cutoff is
163 accumulates error when tempera
164 temperature trip point. For mo
165 Documentation/driver-api/therm
166
167 Unit: millidegree Celsius
168
169 RW, Optional
170
171 What: /sys/class/thermal/thermal_zon
172 Description:
173 The slope constant used in a l
174 to determine a hotspot tempera
175 raw readings. It is up to the
176 the usage of these values.
177
178 RW, Optional
179
180 What: /sys/class/thermal/thermal_zon
181 Description:
182 The offset constant used in a
183 to determine a hotspot tempera
184 raw readings. It is up to the
185 the usage of these values.
186
187 RW, Optional
188
189 What: /sys/class/thermal/thermal_zon
190 Description:
191 An estimate of the sustained p
192 the thermal zone. Used by the
193 more information see
194 Documentation/driver-api/therm
195
196 Unit: milliwatts
197
198 RW, Optional
199
200 What: /sys/class/thermal/cooling_dev
201 Description:
202 String which represents the ty
203
204 - for generic ACPI: should be
205 - for memory controller device
206 should be "Memory controller
207
208 RO, Required
209
210 What: /sys/class/thermal/cooling_dev
211 Description:
212 The maximum permissible coolin
213
214 RO, Required
215
216 What: /sys/class/thermal/cooling_dev
217 Description:
218 The current cooling state of t
219 The value can any integer numb
220
221 - cur_state == 0 means no cool
222 - cur_state == max_state means
223
224 RW, Required
225
226 What: /sys/class/thermal/cooling_dev
227 Description:
228 Writing any value resets the c
229
230 WO, Required
231
232 What: /sys/class/thermal/cooling_dev
233 Description:
234 The amount of time spent by th
235 cooling states. The output wil
236 in each line, which will mean
237 msec of time at <state>.
238
239 Output will have one line for
240
241 RO, Required
242
243 What: /sys/class/thermal/cooling_dev
244 Description:
245 A single positive value showin
246 the state of a cooling device
247
248 RO, Required
249
250 What: /sys/class/thermal/cooling_dev
251 Description:
252 This gives fine grained inform
253 transitions. The cat output he
254 where an entry <i,j> (row i, c
255 of transitions from State_i to
256 table is bigger than PAGE_SIZE
257 an -EFBIG error.
258
259 RO, Required
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