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| author | Andreas Werner <andreas.werner@men.de> | 2014-08-27 19:53:06 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2014-09-24 16:36:33 +0200 |
| commit | 964356938fcd3c0001a786f55b9f0a0fbe47656a (patch) | |
| tree | 8c1ae018b122c0600bf1fd08eeb4b74a67165801 /Documentation/hwmon | |
| parent | leds: leds-menf21bmc: Introduce MEN 14F021P00 BMC LED driver (diff) | |
| download | linux-964356938fcd3c0001a786f55b9f0a0fbe47656a.tar.xz linux-964356938fcd3c0001a786f55b9f0a0fbe47656a.zip | |
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 <andreas.werner@men.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/menf21bmc | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/hwmon/menf21bmc b/Documentation/hwmon/menf21bmc new file mode 100644 index 000000000000..2a273a065c5e --- /dev/null +++ b/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" |