adm1275 2.3 KB

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  1. Kernel driver adm1275
  2. =====================
  3. Supported chips:
  4. * Analog Devices ADM1275
  5. Prefix: 'adm1275'
  6. Addresses scanned: -
  7. Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf
  8. * Analog Devices ADM1276
  9. Prefix: 'adm1276'
  10. Addresses scanned: -
  11. Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1276.pdf
  12. Author: Guenter Roeck <guenter.roeck@ericsson.com>
  13. Description
  14. -----------
  15. This driver supports hardware montoring for Analog Devices ADM1275 and ADM1276
  16. Hot-Swap Controller and Digital Power Monitor.
  17. ADM1275 and ADM1276 are hot-swap controllers that allow a circuit board to be
  18. removed from or inserted into a live backplane. They also feature current and
  19. voltage readback via an integrated 12-bit analog-to-digital converter (ADC),
  20. accessed using a PMBus interface.
  21. The driver is a client driver to the core PMBus driver. Please see
  22. Documentation/hwmon/pmbus for details on PMBus client drivers.
  23. Usage Notes
  24. -----------
  25. This driver does not auto-detect devices. You will have to instantiate the
  26. devices explicitly. Please see Documentation/i2c/instantiating-devices for
  27. details.
  28. Platform data support
  29. ---------------------
  30. The driver supports standard PMBus driver platform data. Please see
  31. Documentation/hwmon/pmbus for details.
  32. Sysfs entries
  33. -------------
  34. The following attributes are supported. Limits are read-write, history reset
  35. attributes are write-only, all other attributes are read-only.
  36. in1_label "vin1" or "vout1" depending on chip variant and
  37. configuration.
  38. in1_input Measured voltage.
  39. in1_min Minumum Voltage.
  40. in1_max Maximum voltage.
  41. in1_min_alarm Voltage low alarm.
  42. in1_max_alarm Voltage high alarm.
  43. in1_highest Historical maximum voltage.
  44. in1_reset_history Write any value to reset history.
  45. curr1_label "iout1"
  46. curr1_input Measured current.
  47. curr1_max Maximum current.
  48. curr1_max_alarm Current high alarm.
  49. curr1_lcrit Critical minimum current. Depending on the chip
  50. configuration, either curr1_lcrit or curr1_crit is
  51. supported, but not both.
  52. curr1_lcrit_alarm Critical current low alarm.
  53. curr1_crit Critical maximum current. Depending on the chip
  54. configuration, either curr1_lcrit or curr1_crit is
  55. supported, but not both.
  56. curr1_crit_alarm Critical current high alarm.
  57. curr1_highest Historical maximum current.
  58. curr1_reset_history Write any value to reset history.