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| author | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-03-17 13:16:01 -0700 |
|---|---|---|
| committer | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-05-19 08:19:41 -0700 |
| commit | 83f7649c52871d4b0799c209c364374b682fa4a8 (patch) | |
| tree | e39a462b73225034026277767fa45de9832a7975 /Documentation/hwmon/adm1275 | |
| parent | 0c0a0615163e025eb978547969467012529e01d5 (diff) | |
| download | lwn-83f7649c52871d4b0799c209c364374b682fa4a8.tar.gz lwn-83f7649c52871d4b0799c209c364374b682fa4a8.zip | |
hwmon: (pmbus) Add support for Analog Devices ADM1275
Add support for Analog Devices ADM1275 Hot-Swap Controller and Digital Power
Monitor
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>
Diffstat (limited to 'Documentation/hwmon/adm1275')
| -rw-r--r-- | Documentation/hwmon/adm1275 | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/Documentation/hwmon/adm1275 b/Documentation/hwmon/adm1275 new file mode 100644 index 000000000000..6a3a6476cf20 --- /dev/null +++ b/Documentation/hwmon/adm1275 @@ -0,0 +1,60 @@ +Kernel driver adm1275 +===================== + +Supported chips: + * Analog Devices ADM1275 + Prefix: 'adm1275' + Addresses scanned: - + Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf + +Author: Guenter Roeck <guenter.roeck@ericsson.com> + + +Description +----------- + +This driver supports hardware montoring for Analog Devices ADM1275 Hot-Swap +Controller and Digital Power Monitor. + +The ADM1275 is a hot-swap controller that allows a circuit board to be removed +from or inserted into a live backplane. It also features current and voltage +readback via an integrated 12-bit analog-to-digital converter (ADC), accessed +using a PMBus. interface. + +The driver is a client driver to the core PMBus driver. Please see +Documentation/hwmon/pmbus for details on PMBus client drivers. + + +Usage Notes +----------- + +This driver does not auto-detect devices. You will have to instantiate the +devices explicitly. Please see Documentation/i2c/instantiating-devices for +details. + + +Platform data support +--------------------- + +The driver supports standard PMBus driver platform data. Please see +Documentation/hwmon/pmbus for details. + + +Sysfs entries +------------- + +The following attributes are supported. Limits are read-write; all other +attributes are read-only. + +in1_label "vin1" or "vout1" depending on chip variant and + configuration. +in1_input Measured voltage. From READ_VOUT register. +in1_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register. +in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register. +in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. +in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. + +curr1_label "iout1" +curr1_input Measured current. From READ_IOUT register. +curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register. +curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register. |