1 Kernel driver lm93 1 Kernel driver lm93
2 ================== 2 ==================
3 3
4 Supported chips: 4 Supported chips:
5 5
6 * National Semiconductor LM93 6 * National Semiconductor LM93
7 7
8 Prefix 'lm93' 8 Prefix 'lm93'
9 9
10 Addresses scanned: I2C 0x2c-0x2e 10 Addresses scanned: I2C 0x2c-0x2e
11 11
12 Datasheet: http://www.national.com/ds.cgi/ 12 Datasheet: http://www.national.com/ds.cgi/LM/LM93.pdf
13 13
14 * National Semiconductor LM94 14 * National Semiconductor LM94
15 15
16 Prefix 'lm94' 16 Prefix 'lm94'
17 17
18 Addresses scanned: I2C 0x2c-0x2e 18 Addresses scanned: I2C 0x2c-0x2e
19 19
20 Datasheet: http://www.national.com/ds.cgi/ 20 Datasheet: http://www.national.com/ds.cgi/LM/LM94.pdf
21 21
22 22
23 Authors: 23 Authors:
24 - Mark M. Hoffman <mhoffman@lightlink.c 24 - Mark M. Hoffman <mhoffman@lightlink.com>
25 - Ported to 2.6 by Eric J. Bowersox <er 25 - Ported to 2.6 by Eric J. Bowersox <ericb@aspsys.com>
26 - Adapted to 2.6.20 by Carsten Emde <ce 26 - Adapted to 2.6.20 by Carsten Emde <ce@osadl.org>
27 - Modified for mainline integration by< 27 - Modified for mainline integration by Hans J. Koch <hjk@hansjkoch.de>
28 28
29 Module Parameters 29 Module Parameters
30 ----------------- 30 -----------------
31 31
32 * init: integer 32 * init: integer
33 Set to non-zero to force some initialization 33 Set to non-zero to force some initializations (default is 0).
34 * disable_block: integer 34 * disable_block: integer
35 A "0" allows SMBus block data transactions i 35 A "0" allows SMBus block data transactions if the host supports them. A "1"
36 disables SMBus block data transactions. The 36 disables SMBus block data transactions. The default is 0.
37 * vccp_limit_type: integer array (2) 37 * vccp_limit_type: integer array (2)
38 Configures in7 and in8 limit type, where 0 m 38 Configures in7 and in8 limit type, where 0 means absolute and non-zero
39 means relative. "Relative" here refers to " 39 means relative. "Relative" here refers to "Dynamic Vccp Monitoring using
40 VID" from the datasheet. It greatly simplif 40 VID" from the datasheet. It greatly simplifies the interface to allow
41 only one set of limits (absolute or relative 41 only one set of limits (absolute or relative) to be in operation at a
42 time (even though the hardware is capable of 42 time (even though the hardware is capable of enabling both). There's
43 not a compelling use case for enabling both 43 not a compelling use case for enabling both at once, anyway. The default
44 is "0,0". 44 is "0,0".
45 * vid_agtl: integer 45 * vid_agtl: integer
46 A "0" configures the VID pins for V(ih) = 2. 46 A "0" configures the VID pins for V(ih) = 2.1V min, V(il) = 0.8V max.
47 A "1" configures the VID pins for V(ih) = 0. 47 A "1" configures the VID pins for V(ih) = 0.8V min, V(il) = 0.4V max.
48 (The latter setting is referred to as AGTL+ 48 (The latter setting is referred to as AGTL+ Compatible in the datasheet.)
49 I.e. this parameter controls the VID pin inp 49 I.e. this parameter controls the VID pin input thresholds; if your VID
50 inputs are not working, try changing this. 50 inputs are not working, try changing this. The default value is "0".
51 51
52 52
53 Hardware Description 53 Hardware Description
54 -------------------- 54 --------------------
55 55
56 (from the datasheet) 56 (from the datasheet)
57 57
58 The LM93 hardware monitor has a two wire digit 58 The LM93 hardware monitor has a two wire digital interface compatible with
59 SMBus 2.0. Using an 8-bit ADC, the LM93 measur 59 SMBus 2.0. Using an 8-bit ADC, the LM93 measures the temperature of two remote
60 diode connected transistors as well as its own 60 diode connected transistors as well as its own die and 16 power supply
61 voltages. To set fan speed, the LM93 has two P 61 voltages. To set fan speed, the LM93 has two PWM outputs that are each
62 controlled by up to four temperature zones. Th 62 controlled by up to four temperature zones. The fancontrol algorithm is lookup
63 table based. The LM93 includes a digital filte 63 table based. The LM93 includes a digital filter that can be invoked to smooth
64 temperature readings for better control of fan 64 temperature readings for better control of fan speed. The LM93 has four
65 tachometer inputs to measure fan speed. Limit 65 tachometer inputs to measure fan speed. Limit and status registers for all
66 measured values are included. The LM93 builds 66 measured values are included. The LM93 builds upon the functionality of
67 previous motherboard management ASICs and uses 67 previous motherboard management ASICs and uses some of the LM85's features
68 (i.e. smart tachometer mode). It also adds mea 68 (i.e. smart tachometer mode). It also adds measurement and control support
69 for dynamic Vccp monitoring and PROCHOT. It is 69 for dynamic Vccp monitoring and PROCHOT. It is designed to monitor a dual
70 processor Xeon class motherboard with a minimu 70 processor Xeon class motherboard with a minimum of external components.
71 71
72 LM94 is also supported in LM93 compatible mode 72 LM94 is also supported in LM93 compatible mode. Extra sensors and features of
73 LM94 are not supported. 73 LM94 are not supported.
74 74
75 75
76 User Interface 76 User Interface
77 -------------- 77 --------------
78 78
79 #PROCHOT 79 #PROCHOT
80 ^^^^^^^^ 80 ^^^^^^^^
81 81
82 The LM93 can monitor two #PROCHOT signals. Th 82 The LM93 can monitor two #PROCHOT signals. The results are found in the
83 sysfs files prochot1, prochot2, prochot1_avg, 83 sysfs files prochot1, prochot2, prochot1_avg, prochot2_avg, prochot1_max,
84 and prochot2_max. prochot1_max and prochot2_m 84 and prochot2_max. prochot1_max and prochot2_max contain the user limits
85 for #PROCHOT1 and #PROCHOT2, respectively. pr 85 for #PROCHOT1 and #PROCHOT2, respectively. prochot1 and prochot2 contain
86 the current readings for the most recent compl 86 the current readings for the most recent complete time interval. The
87 value of prochot1_avg and prochot2_avg is some 87 value of prochot1_avg and prochot2_avg is something like a 2 period
88 exponential moving average (but not quite - ch 88 exponential moving average (but not quite - check the datasheet). Note
89 that this third value is calculated by the chi 89 that this third value is calculated by the chip itself. All values range
90 from 0-255 where 0 indicates no throttling, an 90 from 0-255 where 0 indicates no throttling, and 255 indicates > 99.6%.
91 91
92 The monitoring intervals for the two #PROCHOT 92 The monitoring intervals for the two #PROCHOT signals is also configurable.
93 These intervals can be found in the sysfs file 93 These intervals can be found in the sysfs files prochot1_interval and
94 prochot2_interval. The values in these files 94 prochot2_interval. The values in these files specify the intervals for
95 #P1_PROCHOT and #P2_PROCHOT, respectively. Se 95 #P1_PROCHOT and #P2_PROCHOT, respectively. Selecting a value not in this
96 list will cause the driver to use the next lar 96 list will cause the driver to use the next largest interval. The available
97 intervals are (in seconds): 97 intervals are (in seconds):
98 98
99 #PROCHOT intervals: 99 #PROCHOT intervals:
100 0.73, 1.46, 2.9, 5.8, 11.7, 23.3, 46.6 100 0.73, 1.46, 2.9, 5.8, 11.7, 23.3, 46.6, 93.2, 186, 372
101 101
102 It is possible to configure the LM93 to logica 102 It is possible to configure the LM93 to logically short the two #PROCHOT
103 signals. I.e. when #P1_PROCHOT is asserted, t 103 signals. I.e. when #P1_PROCHOT is asserted, the LM93 will automatically
104 assert #P2_PROCHOT, and vice-versa. This mode 104 assert #P2_PROCHOT, and vice-versa. This mode is enabled by writing a
105 non-zero integer to the sysfs file prochot_sho 105 non-zero integer to the sysfs file prochot_short.
106 106
107 The LM93 can also override the #PROCHOT pins b 107 The LM93 can also override the #PROCHOT pins by driving a PWM signal onto
108 one or both of them. When overridden, the sig 108 one or both of them. When overridden, the signal has a period of 3.56 ms,
109 a minimum pulse width of 5 clocks (at 22.5kHz 109 a minimum pulse width of 5 clocks (at 22.5kHz => 6.25% duty cycle), and
110 a maximum pulse width of 80 clocks (at 22.5kHz 110 a maximum pulse width of 80 clocks (at 22.5kHz => 99.88% duty cycle).
111 111
112 The sysfs files prochot1_override and prochot2 112 The sysfs files prochot1_override and prochot2_override contain boolean
113 integers which enable or disable the override 113 integers which enable or disable the override function for #P1_PROCHOT and
114 #P2_PROCHOT, respectively. The sysfs file pro 114 #P2_PROCHOT, respectively. The sysfs file prochot_override_duty_cycle
115 contains a value controlling the duty cycle fo 115 contains a value controlling the duty cycle for the PWM signal used when
116 the override function is enabled. This value 116 the override function is enabled. This value ranges from 0 to 15, with 0
117 indicating minimum duty cycle and 15 indicatin 117 indicating minimum duty cycle and 15 indicating maximum.
118 118
119 #VRD_HOT 119 #VRD_HOT
120 ^^^^^^^^ 120 ^^^^^^^^
121 121
122 The LM93 can monitor two #VRD_HOT signals. The 122 The LM93 can monitor two #VRD_HOT signals. The results are found in the
123 sysfs files vrdhot1 and vrdhot2. There is one 123 sysfs files vrdhot1 and vrdhot2. There is one value per file: a boolean for
124 which 1 indicates #VRD_HOT is asserted and 0 i 124 which 1 indicates #VRD_HOT is asserted and 0 indicates it is negated. These
125 files are read-only. 125 files are read-only.
126 126
127 Smart Tach Mode (from the datasheet):: 127 Smart Tach Mode (from the datasheet)::
128 128
129 If a fan is driven using a low-side dr 129 If a fan is driven using a low-side drive PWM, the tachometer
130 output of the fan is corrupted. The LM 130 output of the fan is corrupted. The LM93 includes smart tachometer
131 circuitry that allows an accurate tach 131 circuitry that allows an accurate tachometer reading to be
132 achieved despite the signal corruption 132 achieved despite the signal corruption. In smart tach mode all
133 four signals are measured within 4 sec 133 four signals are measured within 4 seconds.
134 134
135 Smart tach mode is enabled by the driver by wr 135 Smart tach mode is enabled by the driver by writing 1 or 2 (associating the
136 fan tachometer with a pwm) to the sysfs file f !! 136 the fan tachometer with a pwm) to the sysfs file fan<n>_smart_tach. A zero
137 will disable the function for that fan. Note 137 will disable the function for that fan. Note that Smart tach mode cannot be
138 enabled if the PWM output frequency is 22500 H 138 enabled if the PWM output frequency is 22500 Hz (see below).
139 139
140 Manual PWM 140 Manual PWM
141 ^^^^^^^^^^ 141 ^^^^^^^^^^
142 142
143 The LM93 has a fixed or override mode for the 143 The LM93 has a fixed or override mode for the two PWM outputs (although, there
144 are still some conditions that will override e 144 are still some conditions that will override even this mode - see section
145 15.10.6 of the datasheet for details.) The sy 145 15.10.6 of the datasheet for details.) The sysfs files pwm1_override
146 and pwm2_override are used to enable this mode 146 and pwm2_override are used to enable this mode; each is a boolean integer
147 where 0 disables and 1 enables the manual cont 147 where 0 disables and 1 enables the manual control mode. The sysfs files pwm1
148 and pwm2 are used to set the manual duty cycle 148 and pwm2 are used to set the manual duty cycle; each is an integer (0-255)
149 where 0 is 0% duty cycle, and 255 is 100%. No 149 where 0 is 0% duty cycle, and 255 is 100%. Note that the duty cycle values
150 are constrained by the hardware. Selecting a v 150 are constrained by the hardware. Selecting a value which is not available
151 will cause the driver to use the next largest 151 will cause the driver to use the next largest value. Also note: when manual
152 PWM mode is disabled, the value of pwm1 and pw 152 PWM mode is disabled, the value of pwm1 and pwm2 indicates the current duty
153 cycle chosen by the h/w. 153 cycle chosen by the h/w.
154 154
155 PWM Output Frequency 155 PWM Output Frequency
156 ^^^^^^^^^^^^^^^^^^^^ 156 ^^^^^^^^^^^^^^^^^^^^
157 157
158 The LM93 supports several different frequencie 158 The LM93 supports several different frequencies for the PWM output channels.
159 The sysfs files pwm1_freq and pwm2_freq are us 159 The sysfs files pwm1_freq and pwm2_freq are used to select the frequency. The
160 frequency values are constrained by the hardwa 160 frequency values are constrained by the hardware. Selecting a value which is
161 not available will cause the driver to use the 161 not available will cause the driver to use the next largest value. Also note
162 that this parameter has implications for the S 162 that this parameter has implications for the Smart Tach Mode (see above).
163 163
164 PWM Output Frequencies (in Hz): 164 PWM Output Frequencies (in Hz):
165 12, 36, 48, 60, 72, 84, 96, 22500 (def 165 12, 36, 48, 60, 72, 84, 96, 22500 (default)
166 166
167 Automatic PWM 167 Automatic PWM
168 ^^^^^^^^^^^^^ 168 ^^^^^^^^^^^^^
169 169
170 The LM93 is capable of complex automatic fan c 170 The LM93 is capable of complex automatic fan control, with many different
171 points of configuration. To start, each PWM o 171 points of configuration. To start, each PWM output can be bound to any
172 combination of eight control sources. The fin 172 combination of eight control sources. The final PWM is the largest of all
173 individual control sources to which the PWM ou 173 individual control sources to which the PWM output is bound.
174 174
175 The eight control sources are: temp1-temp4 (ak 175 The eight control sources are: temp1-temp4 (aka "zones" in the datasheet),
176 #PROCHOT 1 & 2, and #VRDHOT 1 & 2. The bindin 176 #PROCHOT 1 & 2, and #VRDHOT 1 & 2. The bindings are expressed as a bitmask
177 in the sysfs files pwm<n>_auto_channels, where 177 in the sysfs files pwm<n>_auto_channels, where a "1" enables the binding, and
178 a "0" disables it. The h/w default is 0x0f (al 178 a "0" disables it. The h/w default is 0x0f (all temperatures bound).
179 179
180 ====== =========== 180 ====== ===========
181 0x01 Temp 1 181 0x01 Temp 1
182 0x02 Temp 2 182 0x02 Temp 2
183 0x04 Temp 3 183 0x04 Temp 3
184 0x08 Temp 4 184 0x08 Temp 4
185 0x10 #PROCHOT 1 185 0x10 #PROCHOT 1
186 0x20 #PROCHOT 2 186 0x20 #PROCHOT 2
187 0x40 #VRDHOT 1 187 0x40 #VRDHOT 1
188 0x80 #VRDHOT 2 188 0x80 #VRDHOT 2
189 ====== =========== 189 ====== ===========
190 190
191 The function y = f(x) takes a source temperatu 191 The function y = f(x) takes a source temperature x to a PWM output y. This
192 function of the LM93 is derived from a base te 192 function of the LM93 is derived from a base temperature and a table of 12
193 temperature offsets. The base temperature is 193 temperature offsets. The base temperature is expressed in degrees C in the
194 sysfs files temp<n>_auto_base. The offsets ar 194 sysfs files temp<n>_auto_base. The offsets are expressed in cumulative
195 degrees C, with the value of offset <i> for te 195 degrees C, with the value of offset <i> for temperature value <n> being
196 contained in the file temp<n>_auto_offset<i>. 196 contained in the file temp<n>_auto_offset<i>. E.g. if the base temperature
197 is 40C: 197 is 40C:
198 198
199 ========== ======================= ====== 199 ========== ======================= =============== =======
200 offset # temp<n>_auto_offset<i> range 200 offset # temp<n>_auto_offset<i> range pwm
201 ========== ======================= ====== 201 ========== ======================= =============== =======
202 1 0 - 202 1 0 - 25.00%
203 2 0 - 203 2 0 - 28.57%
204 3 1 40C - 204 3 1 40C - 41C 32.14%
205 4 1 41C - 205 4 1 41C - 42C 35.71%
206 5 2 42C - 206 5 2 42C - 44C 39.29%
207 6 2 44C - 207 6 2 44C - 46C 42.86%
208 7 2 48C - 208 7 2 48C - 50C 46.43%
209 8 2 50C - 209 8 2 50C - 52C 50.00%
210 9 2 52C - 210 9 2 52C - 54C 53.57%
211 10 2 54C - 211 10 2 54C - 56C 57.14%
212 11 2 56C - 212 11 2 56C - 58C 71.43%
213 12 2 58C - 213 12 2 58C - 60C 85.71%
214 - - > 60C 214 - - > 60C 100.00%
215 ========== ======================= ====== 215 ========== ======================= =============== =======
216 216
217 Valid offsets are in the range 0C <= x <= 7.5C 217 Valid offsets are in the range 0C <= x <= 7.5C in 0.5C increments.
218 218
219 There is an independent base temperature for e 219 There is an independent base temperature for each temperature channel. Note,
220 however, there are only two tables of offsets: 220 however, there are only two tables of offsets: one each for temp[12] and
221 temp[34]. Therefore, any change to e.g. temp1 221 temp[34]. Therefore, any change to e.g. temp1_auto_offset<i> will also
222 affect temp2_auto_offset<i>. 222 affect temp2_auto_offset<i>.
223 223
224 The LM93 can also apply hysteresis to the offs 224 The LM93 can also apply hysteresis to the offset table, to prevent unwanted
225 oscillation between two steps in the offsets t 225 oscillation between two steps in the offsets table. These values are found in
226 the sysfs files temp<n>_auto_offset_hyst. The 226 the sysfs files temp<n>_auto_offset_hyst. The value in this file has the
227 same representation as in temp<n>_auto_offset< 227 same representation as in temp<n>_auto_offset<i>.
228 228
229 If a temperature reading falls below the base 229 If a temperature reading falls below the base value for that channel, the LM93
230 will use the minimum PWM value. These values 230 will use the minimum PWM value. These values are found in the sysfs files
231 temp<n>_auto_pwm_min. Note, there are only tw 231 temp<n>_auto_pwm_min. Note, there are only two minimums: one each for temp[12]
232 and temp[34]. Therefore, any change to e.g. t 232 and temp[34]. Therefore, any change to e.g. temp1_auto_pwm_min will also
233 affect temp2_auto_pwm_min. 233 affect temp2_auto_pwm_min.
234 234
235 PWM Spin-Up Cycle 235 PWM Spin-Up Cycle
236 ^^^^^^^^^^^^^^^^^ 236 ^^^^^^^^^^^^^^^^^
237 237
238 A spin-up cycle occurs when a PWM output is co 238 A spin-up cycle occurs when a PWM output is commanded from 0% duty cycle to
239 some value > 0%. The LM93 supports a minimum 239 some value > 0%. The LM93 supports a minimum duty cycle during spin-up. These
240 values are found in the sysfs files pwm<n>_aut 240 values are found in the sysfs files pwm<n>_auto_spinup_min. The value in this
241 file has the same representation as other PWM 241 file has the same representation as other PWM duty cycle values. The
242 duration of the spin-up cycle is also configur 242 duration of the spin-up cycle is also configurable. These values are found in
243 the sysfs files pwm<n>_auto_spinup_time. The v 243 the sysfs files pwm<n>_auto_spinup_time. The value in this file is
244 the spin-up time in seconds. The available sp 244 the spin-up time in seconds. The available spin-up times are constrained by
245 the hardware. Selecting a value which is not 245 the hardware. Selecting a value which is not available will cause the driver
246 to use the next largest value. 246 to use the next largest value.
247 247
248 Spin-up Durations: 248 Spin-up Durations:
249 0 (disabled, h/w default), 0.1, 0.25, 249 0 (disabled, h/w default), 0.1, 0.25, 0.4, 0.7, 1.0, 2.0, 4.0
250 250
251 #PROCHOT and #VRDHOT PWM Ramping 251 #PROCHOT and #VRDHOT PWM Ramping
252 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 252 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
253 253
254 If the #PROCHOT or #VRDHOT signals are asserte 254 If the #PROCHOT or #VRDHOT signals are asserted while bound to a PWM output
255 channel, the LM93 will ramp the PWM output up 255 channel, the LM93 will ramp the PWM output up to 100% duty cycle in discrete
256 steps. The duration of each step is configurab 256 steps. The duration of each step is configurable. There are two files, with
257 one value each in seconds: pwm_auto_prochot_ra 257 one value each in seconds: pwm_auto_prochot_ramp and pwm_auto_vrdhot_ramp.
258 The available ramp times are constrained by th 258 The available ramp times are constrained by the hardware. Selecting a value
259 which is not available will cause the driver t 259 which is not available will cause the driver to use the next largest value.
260 260
261 Ramp Times: 261 Ramp Times:
262 0 (disabled, h/w default) to 0.75 in 0 262 0 (disabled, h/w default) to 0.75 in 0.05 second intervals
263 263
264 Fan Boost 264 Fan Boost
265 ^^^^^^^^^ 265 ^^^^^^^^^
266 266
267 For each temperature channel, there is a boost 267 For each temperature channel, there is a boost temperature: if the channel
268 exceeds this limit, the LM93 will immediately 268 exceeds this limit, the LM93 will immediately drive both PWM outputs to 100%.
269 This limit is expressed in degrees C in the sy 269 This limit is expressed in degrees C in the sysfs files temp<n>_auto_boost.
270 There is also a hysteresis temperature for thi 270 There is also a hysteresis temperature for this function: after the boost
271 limit is reached, the temperature channel must 271 limit is reached, the temperature channel must drop below this value before
272 the boost function is disabled. This temperat 272 the boost function is disabled. This temperature is also expressed in degrees
273 C in the sysfs files temp<n>_auto_boost_hyst. 273 C in the sysfs files temp<n>_auto_boost_hyst.
274 274
275 GPIO Pins 275 GPIO Pins
276 ^^^^^^^^^ 276 ^^^^^^^^^
277 277
278 The LM93 can monitor the logic level of four d 278 The LM93 can monitor the logic level of four dedicated GPIO pins as well as the
279 four tach input pins. GPIO0-GPIO3 correspond 279 four tach input pins. GPIO0-GPIO3 correspond to (fan) tach 1-4, respectively.
280 All eight GPIOs are read by reading the bitmas 280 All eight GPIOs are read by reading the bitmask in the sysfs file gpio. The
281 LSB is GPIO0, and the MSB is GPIO7. 281 LSB is GPIO0, and the MSB is GPIO7.
282 282
283 283
284 LM93 Unique sysfs Files 284 LM93 Unique sysfs Files
285 ----------------------- 285 -----------------------
286 286
287 =========================== ================== 287 =========================== ===============================================
288 file description 288 file description
289 =========================== ================== 289 =========================== ===============================================
290 prochot<n> current #PROCHOT % 290 prochot<n> current #PROCHOT %
291 prochot<n>_avg moving average #PR 291 prochot<n>_avg moving average #PROCHOT %
292 prochot<n>_max limit #PROCHOT % 292 prochot<n>_max limit #PROCHOT %
293 prochot_short enable or disable 293 prochot_short enable or disable logical #PROCHOT pin short
294 prochot<n>_override force #PROCHOT ass 294 prochot<n>_override force #PROCHOT assertion as PWM
295 prochot_override_duty_cycle duty cycle for the 295 prochot_override_duty_cycle duty cycle for the PWM signal used when
296 #PROCHOT is overri 296 #PROCHOT is overridden
297 prochot<n>_interval #PROCHOT PWM sampl 297 prochot<n>_interval #PROCHOT PWM sampling interval
298 vrdhot<n> 0 means negated, 1 298 vrdhot<n> 0 means negated, 1 means asserted
299 fan<n>_smart_tach enable or disable 299 fan<n>_smart_tach enable or disable smart tach mode
300 pwm<n>_auto_channels select control sou 300 pwm<n>_auto_channels select control sources for PWM outputs
301 pwm<n>_auto_spinup_min minimum duty cycle 301 pwm<n>_auto_spinup_min minimum duty cycle during spin-up
302 pwm<n>_auto_spinup_time duration of spin-u 302 pwm<n>_auto_spinup_time duration of spin-up
303 pwm_auto_prochot_ramp ramp time per step 303 pwm_auto_prochot_ramp ramp time per step when #PROCHOT asserted
304 pwm_auto_vrdhot_ramp ramp time per step 304 pwm_auto_vrdhot_ramp ramp time per step when #VRDHOT asserted
305 temp<n>_auto_base temperature channe 305 temp<n>_auto_base temperature channel base
306 temp<n>_auto_offset[1-12] temperature channe 306 temp<n>_auto_offset[1-12] temperature channel offsets
307 temp<n>_auto_offset_hyst temperature channe 307 temp<n>_auto_offset_hyst temperature channel offset hysteresis
308 temp<n>_auto_boost temperature channe 308 temp<n>_auto_boost temperature channel boost (PWMs to 100%)
309 limit 309 limit
310 temp<n>_auto_boost_hyst temperature channe 310 temp<n>_auto_boost_hyst temperature channel boost hysteresis
311 gpio input state of 8 G 311 gpio input state of 8 GPIO pins; read-only
312 =========================== ================== 312 =========================== ===============================================
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.