| Kernel driver max34440 |
| ====================== |
| |
| Supported chips: |
| * Maxim MAX34440 |
| Prefixes: 'max34440' |
| Addresses scanned: - |
| Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34440.pdf |
| * Maxim MAX34441 |
| PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller |
| Prefixes: 'max34441' |
| Addresses scanned: - |
| Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34441.pdf |
| |
| Author: Guenter Roeck <guenter.roeck@ericsson.com> |
| |
| |
| Description |
| ----------- |
| |
| This driver supports hardware montoring for Maxim MAX34440 PMBus 6-Channel |
| Power-Supply Manager and MAX34441 PMBus 5-Channel Power-Supply Manager |
| and Intelligent Fan Controller. |
| |
| 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. |
| |
| |
| Sysfs entries |
| ------------- |
| |
| The following attributes are supported. Limits are read-write; all other |
| attributes are read-only. |
| |
| in[1-6]_label "vout[1-6]". |
| in[1-6]_input Measured voltage. From READ_VOUT register. |
| in[1-6]_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register. |
| in[1-6]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register. |
| in[1-6]_lcrit Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register. |
| in[1-6]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register. |
| in[1-6]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. |
| in[1-6]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. |
| in[1-6]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status. |
| in[1-6]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status. |
| in[1-6]_highest Historical maximum voltage. |
| in[1-6]_reset_history Write any value to reset history. |
| |
| curr[1-6]_label "iout[1-6]". |
| curr[1-6]_input Measured current. From READ_IOUT register. |
| curr[1-6]_max Maximum current. From IOUT_OC_WARN_LIMIT register. |
| curr[1-6]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register. |
| curr[1-6]_max_alarm Current high alarm. From IOUT_OC_WARNING status. |
| curr[1-6]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. |
| curr[1-6]_highest Historical maximum current. |
| curr[1-6]_reset_history Write any value to reset history. |
| |
| in6 and curr6 attributes only exist for MAX34440. |
| |
| temp[1-8]_input Measured temperatures. From READ_TEMPERATURE_1 register. |
| temp1 is the chip's internal temperature. temp2..temp5 |
| are remote I2C temperature sensors. For MAX34441, temp6 |
| is a remote thermal-diode sensor. For MAX34440, temp6..8 |
| are remote I2C temperature sensors. |
| temp[1-8]_max Maximum temperature. From OT_WARN_LIMIT register. |
| temp[1-8]_crit Critical high temperature. From OT_FAULT_LIMIT register. |
| temp[1-8]_max_alarm Temperature high alarm. |
| temp[1-8]_crit_alarm Temperature critical high alarm. |
| temp[1-8]_highest Historical maximum temperature. |
| temp[1-8]_reset_history Write any value to reset history. |
| |
| temp7 and temp8 attributes only exist for MAX34440. |