| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | Kernel driver menf21bmc_hwmon |
| 2 | ============================= |
| 3 | |
| 4 | Supported chips: |
| 5 | * MEN 14F021P00 |
| 6 | Prefix: 'menf21bmc_hwmon' |
| 7 | Adresses scanned: - |
| 8 | |
| 9 | Author: Andreas Werner <andreas.werner@men.de> |
| 10 | |
| 11 | Description |
| 12 | ----------- |
| 13 | |
| 14 | The menf21bmc is a Board Management Controller (BMC) which provides an I2C |
| 15 | interface to the host to access the features implemented in the BMC. |
| 16 | |
| 17 | This driver gives access to the voltage monitoring feature of the main |
| 18 | voltages of the board. |
| 19 | The voltage sensors are connected to the ADC inputs of the BMC which is |
| 20 | a PIC16F917 Mikrocontroller. |
| 21 | |
| 22 | Usage Notes |
| 23 | ----------- |
| 24 | |
| 25 | This driver is part of the MFD driver named "menf21bmc" and does |
| 26 | not auto-detect devices. |
| 27 | You will have to instantiate the MFD driver explicitly. |
| 28 | Please see Documentation/i2c/instantiating-devices for |
| 29 | details. |
| 30 | |
| 31 | Sysfs entries |
| 32 | ------------- |
| 33 | |
| 34 | The following attributes are supported. All attributes are read only |
| 35 | The Limits are read once by the driver. |
| 36 | |
| 37 | in0_input +3.3V input voltage |
| 38 | in1_input +5.0V input voltage |
| 39 | in2_input +12.0V input voltage |
| 40 | in3_input +5V Standby input voltage |
| 41 | in4_input VBAT (on board battery) |
| 42 | |
| 43 | in[0-4]_min Minimum voltage limit |
| 44 | in[0-4]_max Maximum voltage limit |
| 45 | |
| 46 | in0_label "MON_3_3V" |
| 47 | in1_label "MON_5V" |
| 48 | in2_label "MON_12V" |
| 49 | in3_label "5V_STANDBY" |
| 50 | in4_label "VBAT" |