projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 83f7649c GR |
1 | Kernel driver adm1275 |
| 2 | ===================== | |
| 3 | ||
| 4 | Supported chips: | |
| 5 | * Analog Devices ADM1275 | |
| 6 | Prefix: 'adm1275' | |
| 7 | Addresses scanned: - | |
| 8 | Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf | |
| 9 | ||
| 10 | Author: Guenter Roeck <guenter.roeck@ericsson.com> | |
| 11 | ||
| 12 | ||
| 13 | Description | |
| 14 | ----------- | |
| 15 | ||
| 16 | This driver supports hardware montoring for Analog Devices ADM1275 Hot-Swap | |
| 17 | Controller and Digital Power Monitor. | |
| 18 | ||
| 19 | The ADM1275 is a hot-swap controller that allows a circuit board to be removed | |
| 20 | from or inserted into a live backplane. It also features current and voltage | |
| 21 | readback via an integrated 12-bit analog-to-digital converter (ADC), accessed | |
| 22 | using a PMBus. interface. | |
| 23 | ||
| 24 | The driver is a client driver to the core PMBus driver. Please see | |
| 25 | Documentation/hwmon/pmbus for details on PMBus client drivers. | |
| 26 | ||
| 27 | ||
| 28 | Usage Notes | |
| 29 | ----------- | |
| 30 | ||
| 31 | This driver does not auto-detect devices. You will have to instantiate the | |
| 32 | devices explicitly. Please see Documentation/i2c/instantiating-devices for | |
| 33 | details. | |
| 34 | ||
| 35 | ||
| 36 | Platform data support | |
| 37 | --------------------- | |
| 38 | ||
| 39 | The driver supports standard PMBus driver platform data. Please see | |
| 40 | Documentation/hwmon/pmbus for details. | |
| 41 | ||
| 42 | ||
| 43 | Sysfs entries | |
| 44 | ------------- | |
| 45 | ||
| 46 | The following attributes are supported. Limits are read-write; all other | |
| 47 | attributes are read-only. | |
| 48 | ||
| 49 | in1_label "vin1" or "vout1" depending on chip variant and | |
| 50 | configuration. | |
| 51 | in1_input Measured voltage. From READ_VOUT register. | |
| 52 | in1_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register. | |
| 53 | in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register. | |
| 54 | in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. | |
| 55 | in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. | |
| 56 | ||
| 57 | curr1_label "iout1" | |
| 58 | curr1_input Measured current. From READ_IOUT register. | |
| 59 | curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register. | |
| 60 | curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register. |