Documentation/hwmon/ltc2978

   1 Kernel driver ltc2978
   2 =====================
   3
   4 Supported chips:
   5   * Linear Technology LTC2978
   6     Prefix: 'ltc2978'
   7     Addresses scanned: -
   8     Datasheet: http://cds.linear.com/docs/Datasheet/2978fa.pdf
   9
  10 Author: Guenter Roeck <guenter.roeck@ericsson.com>
  11
  12
  13 Description
  14 -----------
  15
  16 The LTC2978 is an octal power supply monitor, supervisor, sequencer and
  17 margin controller.
  18
  19
  20 Usage Notes
  21 -----------
  22
  23 This driver does not probe for PMBus devices. You will have to instantiate
  24 devices explicitly.
  25
  26 Example: the following commands will load the driver for an LTC2978 at address
  27 0x60 on I2C bus #1:
  28
  29 # modprobe ltc2978
  30 # echo ltc2978 0x60 > /sys/bus/i2c/devices/i2c-1/new_device
  31
  32
  33 Sysfs attributes
  34 ----------------
  35
  36 in1_label               "vin"
  37 in1_input               Measured input voltage.
  38 in1_min                 Minimum input voltage.
  39 in1_max                 Maximum input voltage.
  40 in1_lcrit               Critical minimum input voltage.
  41 in1_crit                Critical maximum input voltage.
  42 in1_min_alarm           Input voltage low alarm.
  43 in1_max_alarm           Input voltage high alarm.
  44 in1_lcrit_alarm         Input voltage critical low alarm.
  45 in1_crit_alarm          Input voltage critical high alarm.
  46 in1_lowest              Lowest input voltage.
  47 in1_highest             Highest input voltage.
  48 in1_reset_history       Reset history. Writing into this attribute will reset
  49                         history for all attributes.
  50
  51 in[2-9]_label           "vout[1-8]".
  52 in[2-9]_input           Measured output voltage.
  53 in[2-9]_min             Minimum output voltage.
  54 in[2-9]_max             Maximum output voltage.
  55 in[2-9]_lcrit           Critical minimum output voltage.
  56 in[2-9]_crit            Critical maximum output voltage.
  57 in[2-9]_min_alarm       Output voltage low alarm.
  58 in[2-9]_max_alarm       Output voltage high alarm.
  59 in[2-9]_lcrit_alarm     Output voltage critical low alarm.
  60 in[2-9]_crit_alarm      Output voltage critical high alarm.
  61 in[2-9]_lowest          Lowest output voltage.
  62 in[2-9]_highest         Lowest output voltage.
  63 in[2-9]_reset_history   Reset history. Writing into this attribute will reset
  64                         history for all attributes.
  65
  66 temp1_input             Measured temperature.
  67 temp1_min               Mimimum temperature.
  68 temp1_max               Maximum temperature.
  69 temp1_lcrit             Critical low temperature.
  70 temp1_crit              Critical high temperature.
  71 temp1_min_alarm         Chip temperature low alarm.
  72 temp1_max_alarm         Chip temperature high alarm.
  73 temp1_lcrit_alarm       Chip temperature critical low alarm.
  74 temp1_crit_alarm        Chip temperature critical high alarm.
  75 temp1_lowest            Lowest measured temperature.
  76 temp1_highest           Highest measured temperature.
  77 temp1_reset_history     Reset history. Writing into this attribute will reset
  78                         history for all attributes.