Kernel driver menf21bmc_hwmon¶
Supported chips:
MEN 14F021P00
Prefix: ‘menf21bmc_hwmon’
Adresses scanned: -
Author: Andreas Werner <andreas.werner@men.de>
Description¶
The menf21bmc is a Board Management Controller (BMC) which provides an I2C interface to the host to access the features implemented in the BMC.
This driver gives access to the voltage monitoring feature of the main voltages of the board. The voltage sensors are connected to the ADC inputs of the BMC which is a PIC16F917 Mikrocontroller.
Usage Notes¶
This driver is part of the MFD driver named “menf21bmc” and does not auto-detect devices. You will have to instantiate the MFD driver explicitly. Please see Documentation/i2c/instantiating-devices for details.
Sysfs entries¶
The following attributes are supported. All attributes are read only The Limits are read once by the driver.
| in0_input | +3.3V input voltage |
| in1_input | +5.0V input voltage |
| in2_input | +12.0V input voltage |
| in3_input | +5V Standby input voltage |
| in4_input | VBAT (on board battery) |
| in[0-4]_min | Minimum voltage limit |
| in[0-4]_max | Maximum voltage limit |
| in0_label | “MON_3_3V” |
| in1_label | “MON_5V” |
| in2_label | “MON_12V” |
| in3_label | “5V_STANDBY” |
| in4_label | “VBAT” |