projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 2669d9f5 GR |
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 | ||
| e3333e57 | 10 | Author: Guenter Roeck <linux@roeck-us.net> |
| 2669d9f5 GR |
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. | |
| 40e47125 | 45 | in1_min Minimum Voltage. From VOUT_UV_WARN_LIMIT register. |
| 2669d9f5 | 46 | in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register. |
| 40e47125 | 47 | in1_lcrit Critical minimum Voltage. VOUT_UV_FAULT_LIMIT register. |
| 2669d9f5 GR |
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. | |
| 70e94b27 GR |
53 | in1_highest Historical maximum voltage. |
| 54 | in1_reset_history Write any value to reset history. | |
| 2669d9f5 GR |
55 | |
| 56 | curr1_label "iout1" | |
| 57 | curr1_input Measured current. From READ_IOUT register. | |
| 58 | curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register. | |
| 59 | curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register. | |
| 60 | curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register. | |
| 61 | curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. | |
| 70e94b27 GR |
62 | curr1_highest Historical maximum current. |
| 63 | curr1_reset_history Write any value to reset history. | |
| 2669d9f5 GR |
64 | |
| 65 | temp1_input Measured temperature. From READ_TEMPERATURE_1 register. | |
| 66 | temp1_max Maximum temperature. From OT_WARN_LIMIT register. | |
| 67 | temp1_crit Critical high temperature. From OT_FAULT_LIMIT register. | |
| 68 | temp1_max_alarm Chip temperature high alarm. Set by comparing | |
| 69 | READ_TEMPERATURE_1 with OT_WARN_LIMIT if TEMP_OT_WARNING | |
| 70 | status is set. | |
| 71 | temp1_crit_alarm Chip temperature critical high alarm. Set by comparing | |
| 72 | READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT | |
| 73 | status is set. | |
| 70e94b27 GR |
74 | temp1_highest Historical maximum temperature. |
| 75 | temp1_reset_history Write any value to reset history. |