Documentation/hwmon/w83627ehf.rst

22   * Winbond W83627DHG-P
46   * Winbond W83667HG-B
54   * Nuvoton NCT6775F/W83667HG-I
73 	- Jean Delvare <jdelvare@suse.de>
74 	- Yuan Mu (Winbond)
75 	- Rudolf Marek <r.marek@assembler.cz>
76 	- David Hubbard <david.c.hubbard@gmail.com>
77 	- Gong Jun <JGong@nuvoton.com>
80 -----------
83 W83627DHG, W83627DHG-P, W83627UHG, W83667HG, W83667HG-B, W83667HG-I
92 The temperature sensor sources on W82677HG-B, NCT6775F, and NCT6776F are
94 source differs from the temperature sources of the already reported temperature
95 sensors. The configured source for each of the temperature sensors is provided
100 resolution is 1 degC for W83667HG-B and 0.0 degC for NCT6775F and NCT6776F.
121 The mode works for fan1-fan4. Mapping of temperatures to pwm outputs is as
124   temp1 -> pwm1
125   temp2 -> pwm2
126   temp3 -> pwm3 (not on 627UHG)
127   prog  -> pwm4 (not on 667HG and 667HG-B; the programmable setting is not
131 ----------
138 pwm[1-4]
143 pwm[1-4]_enable
146 	* 1 Manual mode, write to pwm file any value 0-255 (full speed)
155 	startup, and is only supported for W83677HG-B, NCT6775F, and NCT6776F.
163 pwm[1-4]_mode
164 	controls if output is PWM or DC level
166 	* 0 DC output (0 - 12v)
167 	* 1 PWM output
170 -------------------
174 pwm[1-4]_target
176 		   (range 0 - 127000)
177 pwm[1-4]_tolerance
178 		   tolerance, unit millidegree Celsius (range 0 - 15000)
184 pwm[1-4]_min_output
185 		   minimum fan speed (range 1 - 255), when the temperature
187 pwm[1-4]_stop_time
191 pwm[1-4]_start_output
192 		   minimum fan speed (range 1 - 255) when spinning up
193 pwm[1-4]_step_output
194 		   rate of fan speed change (1 - 255)
195 pwm[1-4]_stop_output
196 		   minimum fan speed (range 1 - 255) when spinning down
197 pwm[1-4]_max_output
198 		   maximum fan speed (range 1 - 255), when the temperature
205 ----------------------
209 different power-on default values, but BIOS should already be loading
216 0x49                      only on DHG, selects temperature source for AUX fan,
235 0x6d                      only on DHG, AUX fan critical temperature
237 0x50-0x55 and 0x650-0x657 marked as:
239 			    - "Test Register" for the EHF
240 			    - "Reserved Register" for the DHG
245 southbridge drives the fans. And the DHG supports SST, a one-wire serial bus.
247 The DHG-P has an additional automatic fan speed control mode named Smart Fan