| Kernel driver adm1275 | |
| ===================== | |
| Supported chips: | |
| * Analog Devices ADM1075 | |
| Prefix: 'adm1075' | |
| Addresses scanned: - | |
| Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1075.pdf | |
| * Analog Devices ADM1275 | |
| Prefix: 'adm1275' | |
| Addresses scanned: - | |
| Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf | |
| * Analog Devices ADM1276 | |
| Prefix: 'adm1276' | |
| Addresses scanned: - | |
| Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1276.pdf | |
| Author: Guenter Roeck <linux@roeck-us.net> | |
| Description | |
| ----------- | |
| This driver supports hardware montoring for Analog Devices ADM1075, ADM1275, | |
| and ADM1276 Hot-Swap Controller and Digital Power Monitor. | |
| ADM1075, ADM1275, and ADM1276 are hot-swap controllers that allow a circuit | |
| board to be removed from or inserted into a live backplane. They also feature | |
| current and voltage readback via an integrated 12-bit analog-to-digital | |
| converter (ADC), accessed using a PMBus interface. | |
| 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. | |
| The ADM1075, unlike many other PMBus devices, does not support internal voltage | |
| or current scaling. Reported voltages, currents, and power are raw measurements, | |
| and will typically have to be scaled. | |
| Platform data support | |
| --------------------- | |
| The driver supports standard PMBus driver platform data. Please see | |
| Documentation/hwmon/pmbus for details. | |
| Sysfs entries | |
| ------------- | |
| The following attributes are supported. Limits are read-write, history reset | |
| attributes are write-only, all other attributes are read-only. | |
| in1_label "vin1" or "vout1" depending on chip variant and | |
| configuration. On ADM1075, vout1 reports the voltage on | |
| the VAUX pin. | |
| in1_input Measured voltage. | |
| in1_min Minimum Voltage. | |
| in1_max Maximum voltage. | |
| in1_min_alarm Voltage low alarm. | |
| in1_max_alarm Voltage high alarm. | |
| in1_highest Historical maximum voltage. | |
| in1_reset_history Write any value to reset history. | |
| curr1_label "iout1" | |
| curr1_input Measured current. | |
| curr1_max Maximum current. | |
| curr1_max_alarm Current high alarm. | |
| curr1_lcrit Critical minimum current. Depending on the chip | |
| configuration, either curr1_lcrit or curr1_crit is | |
| supported, but not both. | |
| curr1_lcrit_alarm Critical current low alarm. | |
| curr1_crit Critical maximum current. Depending on the chip | |
| configuration, either curr1_lcrit or curr1_crit is | |
| supported, but not both. | |
| curr1_crit_alarm Critical current high alarm. | |
| curr1_highest Historical maximum current. | |
| curr1_reset_history Write any value to reset history. | |
| power1_label "pin1" | |
| power1_input Input power. | |
| power1_reset_history Write any value to reset history. | |
| Power attributes are supported on ADM1075 and ADM1276 | |
| only. |