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ADM1276 is mostly compatible to ADM1275, with added support for input power measurement. Add support for it to the ADM1275 driver. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org>
77 lines
2.3 KiB
Plaintext
77 lines
2.3 KiB
Plaintext
Kernel driver adm1275
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=====================
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Supported chips:
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* Analog Devices ADM1275
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Prefix: 'adm1275'
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Addresses scanned: -
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Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf
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* Analog Devices ADM1276
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Prefix: 'adm1276'
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Addresses scanned: -
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Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1276.pdf
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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Description
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-----------
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This driver supports hardware montoring for Analog Devices ADM1275 and ADM1276
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Hot-Swap Controller and Digital Power Monitor.
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ADM1275 and ADM1276 are hot-swap controllers that allow a circuit board to be
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removed from or inserted into a live backplane. They also feature current and
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voltage readback via an integrated 12-bit analog-to-digital converter (ADC),
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accessed using a PMBus interface.
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The driver is a client driver to the core PMBus driver. Please see
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Documentation/hwmon/pmbus for details on PMBus client drivers.
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Usage Notes
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-----------
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This driver does not auto-detect devices. You will have to instantiate the
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devices explicitly. Please see Documentation/i2c/instantiating-devices for
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details.
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Platform data support
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---------------------
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The driver supports standard PMBus driver platform data. Please see
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Documentation/hwmon/pmbus for details.
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Sysfs entries
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-------------
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The following attributes are supported. Limits are read-write, history reset
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attributes are write-only, all other attributes are read-only.
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in1_label "vin1" or "vout1" depending on chip variant and
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configuration.
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in1_input Measured voltage.
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in1_min Minumum Voltage.
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in1_max Maximum voltage.
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in1_min_alarm Voltage low alarm.
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in1_max_alarm Voltage high alarm.
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in1_highest Historical maximum voltage.
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in1_reset_history Write any value to reset history.
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curr1_label "iout1"
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curr1_input Measured current.
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curr1_max Maximum current.
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curr1_max_alarm Current high alarm.
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curr1_lcrit Critical minimum current. Depending on the chip
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configuration, either curr1_lcrit or curr1_crit is
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supported, but not both.
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curr1_lcrit_alarm Critical current low alarm.
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curr1_crit Critical maximum current. Depending on the chip
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configuration, either curr1_lcrit or curr1_crit is
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supported, but not both.
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curr1_crit_alarm Critical current high alarm.
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curr1_highest Historical maximum current.
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curr1_reset_history Write any value to reset history.
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