path: root/Documentation/hwmon
diff options
authorAndreas Werner <>2014-08-27 19:53:06 +0200
committerLee Jones <>2014-09-24 15:36:33 +0100
commit964356938fcd3c0001a786f55b9f0a0fbe47656a (patch)
tree8c1ae018b122c0600bf1fd08eeb4b74a67165801 /Documentation/hwmon
parent38433639af915deeb0b0e28462dd740ce57b72fd (diff)
hwmon: (menf21bmc) Introduce MEN14F021P00 BMC HWMON driver
Added driver to support the 14F021P00 BMC Hardware Monitoring. The BMC is a Board Management Controller including monitoring of the board voltages. Signed-off-by: Andreas Werner <> Reviewed-by: Guenter Roeck <> Signed-off-by: Lee Jones <>
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diff --git a/Documentation/hwmon/menf21bmc b/Documentation/hwmon/menf21bmc
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+Kernel driver menf21bmc_hwmon
+Supported chips:
+ * MEN 14F021P00
+ Prefix: 'menf21bmc_hwmon'
+ Adresses scanned: -
+Author: Andreas Werner <>
+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
+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"