diff options
Diffstat (limited to 'kernel/Documentation/hwmon/menf21bmc')
| -rw-r--r-- | kernel/Documentation/hwmon/menf21bmc | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/kernel/Documentation/hwmon/menf21bmc b/kernel/Documentation/hwmon/menf21bmc new file mode 100644 index 000000000..2a273a065 --- /dev/null +++ b/kernel/Documentation/hwmon/menf21bmc @@ -0,0 +1,50 @@ +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" |