| Guenter Roeck | 2669d9f | 2011-04-18 09:51:04 -0700 | [diff] [blame^] | 1 | Kernel driver max8688 |
| 2 | ===================== |
| 3 | |
| 4 | Supported chips: |
| 5 | * Maxim MAX8688 |
| 6 | Prefix: 'max8688' |
| 7 | Addresses scanned: - |
| 8 | Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX8688.pdf |
| 9 | |
| 10 | Author: Guenter Roeck <guenter.roeck@ericsson.com> |
| 11 | |
| 12 | |
| 13 | Description |
| 14 | ----------- |
| 15 | |
| 16 | This driver supports hardware montoring for Maxim MAX8688 Digital Power-Supply |
| 17 | Controller/Monitor with PMBus Interface. |
| 18 | |
| 19 | The driver is a client driver to the core PMBus driver. Please see |
| 20 | Documentation/hwmon/pmbus for details on PMBus client drivers. |
| 21 | |
| 22 | |
| 23 | Usage Notes |
| 24 | ----------- |
| 25 | |
| 26 | This driver does not auto-detect devices. You will have to instantiate the |
| 27 | devices explicitly. Please see Documentation/i2c/instantiating-devices for |
| 28 | details. |
| 29 | |
| 30 | |
| 31 | Platform data support |
| 32 | --------------------- |
| 33 | |
| 34 | The driver supports standard PMBus driver platform data. |
| 35 | |
| 36 | |
| 37 | Sysfs entries |
| 38 | ------------- |
| 39 | |
| 40 | The following attributes are supported. Limits are read-write; all other |
| 41 | attributes are read-only. |
| 42 | |
| 43 | in1_label "vout1" |
| 44 | in1_input Measured voltage. From READ_VOUT register. |
| 45 | in1_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register. |
| 46 | in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register. |
| 47 | in1_lcrit Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register. |
| 48 | in1_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register. |
| 49 | in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. |
| 50 | in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. |
| 51 | in1_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status. |
| 52 | in1_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status. |
| 53 | |
| 54 | curr1_label "iout1" |
| 55 | curr1_input Measured current. From READ_IOUT register. |
| 56 | curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register. |
| 57 | curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register. |
| 58 | curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register. |
| 59 | curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. |
| 60 | |
| 61 | temp1_input Measured temperature. From READ_TEMPERATURE_1 register. |
| 62 | temp1_max Maximum temperature. From OT_WARN_LIMIT register. |
| 63 | temp1_crit Critical high temperature. From OT_FAULT_LIMIT register. |
| 64 | temp1_max_alarm Chip temperature high alarm. Set by comparing |
| 65 | READ_TEMPERATURE_1 with OT_WARN_LIMIT if TEMP_OT_WARNING |
| 66 | status is set. |
| 67 | temp1_crit_alarm Chip temperature critical high alarm. Set by comparing |
| 68 | READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT |
| 69 | status is set. |