LXR linux/Documentation/hwmon/lm25066.rst

   1Kernel driver lm25066
   2=====================
   3
   4Supported chips:
   5
   6  * TI LM25056
   7
   8    Prefix: 'lm25056'
   9
  10    Addresses scanned: -
  11
  12    Datasheets:
  13
  14        https://www.ti.com/lit/gpn/lm25056
  15
  16        https://www.ti.com/lit/gpn/lm25056a
  17
  18  * National Semiconductor LM25066
  19
  20    Prefix: 'lm25066'
  21
  22    Addresses scanned: -
  23
  24    Datasheets:
  25
  26        http://www.national.com/pf/LM/LM25066.html
  27
  28        http://www.national.com/pf/LM/LM25066A.html
  29
  30  * National Semiconductor LM5064
  31
  32    Prefix: 'lm5064'
  33
  34    Addresses scanned: -
  35
  36    Datasheet:
  37
  38        http://www.national.com/pf/LM/LM5064.html
  39
  40  * National Semiconductor LM5066
  41
  42    Prefix: 'lm5066'
  43
  44    Addresses scanned: -
  45
  46    Datasheet:
  47
  48        http://www.national.com/pf/LM/LM5066.html
  49
  50  * Texas Instruments LM5066I
  51
  52    Prefix: 'lm5066i'
  53
  54    Addresses scanned: -
  55
  56        Datasheet:
  57
  58    https://www.ti.com/product/LM5066I
  59
  60
  61Author: Guenter Roeck <linux@roeck-us.net>
  62
  63
  64Description
  65-----------
  66
  67This driver supports hardware monitoring for National Semiconductor / TI LM25056,
  68LM25066, LM5064, and LM5066/LM5066I Power Management, Monitoring,
  69Control, and Protection ICs.
  70
  71The driver is a client driver to the core PMBus driver. Please see
  72Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
  73
  74
  75Usage Notes
  76-----------
  77
  78This driver does not auto-detect devices. You will have to instantiate the
  79devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
  80details.
  81
  82
  83Platform data support
  84---------------------
  85
  86The driver supports standard PMBus driver platform data.
  87
  88
  89Sysfs entries
  90-------------
  91
  92The following attributes are supported. Limits are read-write; all other
  93attributes are read-only.
  94
  95======================= =======================================================
  96in1_label               "vin"
  97in1_input               Measured input voltage.
  98in1_average             Average measured input voltage.
  99in1_min                 Minimum input voltage.
 100in1_max                 Maximum input voltage.
 101in1_min_alarm           Input voltage low alarm.
 102in1_max_alarm           Input voltage high alarm.
 103
 104in2_label               "vmon"
 105in2_input               Measured voltage on VAUX pin
 106in2_min                 Minimum VAUX voltage (LM25056 only).
 107in2_max                 Maximum VAUX voltage (LM25056 only).
 108in2_min_alarm           VAUX voltage low alarm (LM25056 only).
 109in2_max_alarm           VAUX voltage high alarm (LM25056 only).
 110
 111in3_label               "vout1"
 112                        Not supported on LM25056.
 113in3_input               Measured output voltage.
 114in3_average             Average measured output voltage.
 115in3_min                 Minimum output voltage.
 116in3_min_alarm           Output voltage low alarm.
 117
 118curr1_label             "iin"
 119curr1_input             Measured input current.
 120curr1_average           Average measured input current.
 121curr1_max               Maximum input current.
 122curr1_max_alarm         Input current high alarm.
 123
 124power1_label            "pin"
 125power1_input            Measured input power.
 126power1_average          Average measured input power.
 127power1_max              Maximum input power limit.
 128power1_alarm            Input power alarm
 129power1_input_highest    Historical maximum power.
 130power1_reset_history    Write any value to reset maximum power history.
 131
 132temp1_input             Measured temperature.
 133temp1_max               Maximum temperature.
 134temp1_crit              Critical high temperature.
 135temp1_max_alarm         Chip temperature high alarm.
 136temp1_crit_alarm        Chip temperature critical high alarm.
 137======================= =======================================================
 138