menf21bmc.rst 1.3 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455
  1. Kernel driver menf21bmc_hwmon
  2. =============================
  3. Supported chips:
  4. * MEN 14F021P00
  5. Prefix: 'menf21bmc_hwmon'
  6. Adresses scanned: -
  7. Author: Andreas Werner <andreas.werner@men.de>
  8. Description
  9. -----------
  10. The menf21bmc is a Board Management Controller (BMC) which provides an I2C
  11. interface to the host to access the features implemented in the BMC.
  12. This driver gives access to the voltage monitoring feature of the main
  13. voltages of the board.
  14. The voltage sensors are connected to the ADC inputs of the BMC which is
  15. a PIC16F917 Mikrocontroller.
  16. Usage Notes
  17. -----------
  18. This driver is part of the MFD driver named "menf21bmc" and does
  19. not auto-detect devices.
  20. You will have to instantiate the MFD driver explicitly.
  21. Please see Documentation/i2c/instantiating-devices.rst for
  22. details.
  23. Sysfs entries
  24. -------------
  25. The following attributes are supported. All attributes are read only
  26. The Limits are read once by the driver.
  27. =============== ==========================
  28. in0_input +3.3V input voltage
  29. in1_input +5.0V input voltage
  30. in2_input +12.0V input voltage
  31. in3_input +5V Standby input voltage
  32. in4_input VBAT (on board battery)
  33. in[0-4]_min Minimum voltage limit
  34. in[0-4]_max Maximum voltage limit
  35. in0_label "MON_3_3V"
  36. in1_label "MON_5V"
  37. in2_label "MON_12V"
  38. in3_label "5V_STANDBY"
  39. in4_label "VBAT"
  40. =============== ==========================