1 Kernel driver max31785
2 ======================
3
4 Supported chips:
5
6 * Maxim MAX31785, MAX31785A
7
8 Prefix: 'max31785' or 'max31785a'
9
10 Addresses scanned: -
11
12 Datasheet: https://datasheets.maximintegra
13
14 Author: Andrew Jeffery <andrew@aj.id.au>
15
16 Description
17 -----------
18
19 The Maxim MAX31785 is a PMBus device providing
20 management with temperature and remote voltage
21 features are provided, including PWM frequency
22 dual tachometer measurements, and fan health m
23
24 For dual-rotor configurations the MAX31785A ex
25 readings in attributes fan[5-8]_input. By cont
26 the slowest rotor measurement, and does so in
27
28 Usage Notes
29 -----------
30
31 This driver does not probe for PMBus devices.
32 devices explicitly.
33
34 Sysfs attributes
35 ----------------
36
37 ======================= ======================
38 fan[1-4]_alarm Fan alarm.
39 fan[1-4]_fault Fan fault.
40 fan[1-8]_input Fan RPM. On the MAX317
41 second rotor of fans 1
42 fan[1-4]_target Fan input target
43
44 in[1-6]_crit Critical maximum outpu
45 in[1-6]_crit_alarm Output voltage critica
46 in[1-6]_input Measured output voltag
47 in[1-6]_label "vout[18-23]"
48 in[1-6]_lcrit Critical minimum outpu
49 in[1-6]_lcrit_alarm Output voltage critica
50 in[1-6]_max Maximum output voltage
51 in[1-6]_max_alarm Output voltage high al
52 in[1-6]_min Minimum output voltage
53 in[1-6]_min_alarm Output voltage low ala
54
55 pwm[1-4] Fan target duty cycle
56 pwm[1-4]_enable 0: Full-speed
57 1: Manual PWM control
58 2: Automatic PWM (tach
59 3: Automatic closed-lo
60
61 temp[1-11]_crit Critical high temperat
62 temp[1-11]_crit_alarm Chip temperature criti
63 temp[1-11]_input Measured temperature
64 temp[1-11]_max Maximum temperature
65 temp[1-11]_max_alarm Chip temperature high
66 ======================= ======================
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