| Kernel driver max8688 |
| ===================== |
| |
| Supported chips: |
| |
| * Maxim MAX8688 |
| |
| Prefix: 'max8688' |
| |
| Addresses scanned: - |
| |
| Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX8688.pdf |
| |
| Author: Guenter Roeck <linux@roeck-us.net> |
| |
| |
| Description |
| ----------- |
| |
| This driver supports hardware monitoring for Maxim MAX8688 Digital Power-Supply |
| Controller/Monitor with PMBus Interface. |
| |
| The driver is a client driver to the core PMBus driver. Please see |
| Documentation/hwmon/pmbus.rst 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.rst for |
| details. |
| |
| |
| Platform data support |
| --------------------- |
| |
| The driver supports standard PMBus driver platform data. |
| |
| |
| Sysfs entries |
| ------------- |
| |
| The following attributes are supported. Limits are read-write; all other |
| attributes are read-only. |
| |
| ======================= ======================================================== |
| in1_label "vout1" |
| in1_input Measured voltage. From READ_VOUT register. |
| in1_min Minimum Voltage. From VOUT_UV_WARN_LIMIT register. |
| in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register. |
| in1_lcrit Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register. |
| in1_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT |
| register. |
| in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. |
| in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. |
| in1_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT |
| status. |
| in1_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT |
| status. |
| in1_highest Historical maximum voltage. |
| in1_reset_history Write any value to reset history. |
| |
| curr1_label "iout1" |
| curr1_input Measured current. From READ_IOUT register. |
| curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register. |
| curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT |
| register. |
| curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register. |
| curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. |
| curr1_highest Historical maximum current. |
| curr1_reset_history Write any value to reset history. |
| |
| temp1_input Measured temperature. From READ_TEMPERATURE_1 register. |
| temp1_max Maximum temperature. From OT_WARN_LIMIT register. |
| temp1_crit Critical high temperature. From OT_FAULT_LIMIT register. |
| temp1_max_alarm Chip temperature high alarm. Set by comparing |
| READ_TEMPERATURE_1 with OT_WARN_LIMIT if TEMP_OT_WARNING |
| status is set. |
| temp1_crit_alarm Chip temperature critical high alarm. Set by comparing |
| READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT |
| status is set. |
| temp1_highest Historical maximum temperature. |
| temp1_reset_history Write any value to reset history. |
| ======================= ======================================================== |
