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96435693 AW |
1 | Kernel driver menf21bmc_hwmon |
2 | ============================= | |
3 | ||
4 | Supported chips: | |
de6f2917 | 5 | |
96435693 | 6 | * MEN 14F021P00 |
de6f2917 | 7 | |
96435693 | 8 | Prefix: 'menf21bmc_hwmon' |
de6f2917 | 9 | |
12087a36 | 10 | Addresses scanned: - |
96435693 AW |
11 | |
12 | Author: Andreas Werner <andreas.werner@men.de> | |
13 | ||
14 | Description | |
15 | ----------- | |
16 | ||
17 | The menf21bmc is a Board Management Controller (BMC) which provides an I2C | |
18 | interface to the host to access the features implemented in the BMC. | |
19 | ||
20 | This driver gives access to the voltage monitoring feature of the main | |
21 | voltages of the board. | |
22 | The voltage sensors are connected to the ADC inputs of the BMC which is | |
23 | a PIC16F917 Mikrocontroller. | |
24 | ||
25 | Usage Notes | |
26 | ----------- | |
27 | ||
28 | This driver is part of the MFD driver named "menf21bmc" and does | |
29 | not auto-detect devices. | |
30 | You will have to instantiate the MFD driver explicitly. | |
ccf988b6 | 31 | Please see Documentation/i2c/instantiating-devices.rst for |
96435693 AW |
32 | details. |
33 | ||
34 | Sysfs entries | |
35 | ------------- | |
36 | ||
37 | The following attributes are supported. All attributes are read only | |
38 | The Limits are read once by the driver. | |
39 | ||
de6f2917 | 40 | =============== ========================== |
96435693 AW |
41 | in0_input +3.3V input voltage |
42 | in1_input +5.0V input voltage | |
43 | in2_input +12.0V input voltage | |
44 | in3_input +5V Standby input voltage | |
45 | in4_input VBAT (on board battery) | |
46 | ||
47 | in[0-4]_min Minimum voltage limit | |
48 | in[0-4]_max Maximum voltage limit | |
49 | ||
50 | in0_label "MON_3_3V" | |
51 | in1_label "MON_5V" | |
52 | in2_label "MON_12V" | |
53 | in3_label "5V_STANDBY" | |
54 | in4_label "VBAT" | |
de6f2917 | 55 | =============== ========================== |