Documentation/hwmon/nct6775.rst

19   * Nuvoton NCT5572D/NCT6771F/NCT6772F/NCT6775F/W83677HG-I
83   * Nuvoton NCT6796D-S/NCT6799D-R
93 	Guenter Roeck <linux@roeck-us.net>
96 -----------
108 fan regulation strategies (plus manual fan control mode).
113 Temperatures are measured in degrees Celsius and measurement resolution is
133 The driver supports automatic fan control mode known as Thermal Cruise.
138 The mode works for fan1-fan5.
141 ----------------
143 pwm[1-7]
144     - this file stores PWM duty cycle or DC value (fan speed) in range:
148 pwm[1-7]_enable
149     - this file controls mode of fan/temperature control:
152 	* 1 Manual mode, write to pwm[0-5] any value 0-255
153 	* 2 "Thermal Cruise" mode
158 pwm[1-7]_mode
159     - controls if output is PWM or DC level
165 -----------------------------
167 pwm[1-7]_temp_sel
171 pwm[1-7]_weight_temp_sel
179 pwm[1-7]_weight_duty_step
182 pwm[1-7]_weight_temp_step
187 pwm[1-7]_weight_temp_step_base
191 pwm[1-7]_weight_temp_step_tol
194 Thermal Cruise mode (2)
195 -----------------------
199 pwm[1-7]_target_temp
200 			Target temperature, unit millidegree Celsius
201 			(range 0 - 127000)
203 pwm[1-7]_temp_tolerance
204 			Target temperature tolerance, unit millidegree Celsius
211 pwm[1-7]_start
212 			fan pwm start value (range 1 - 255), to start fan
215 pwm[1-7]_floor
216 			lowest fan pwm (range 0 - 255) if temperature is below
220 pwm[1-7]_step_up_time
223 pwm[1-7]_step_down_time
226 pwm[1-7]_stop_time
232 ---------------------
236 fan[1-7]_target
239 fan[1-7]_tolerance
246 ---------------------
256 pwm[1-7]_auto_point[1-7]_pwm
260 pwm[1-7]_auto_point[1-7]_temp
263 pwm[1-7]_temp_tolerance
264 			Temperature tolerance, unit millidegree Celsius
266 pwm[1-7]_crit_temp_tolerance
268 			unit millidegree Celsius
270 pwm[1-7]_step_up_time
273 pwm[1-7]_step_down_time
277 -----------
280 connected to anything and floats, or that it is connected to some non-standard
284 temperature increases (similar to the raw PECI temperature value - see PECI
288 NCT6796D-S and NCT6799D-R chips are very similar and their chip_id indicates