linux/Documentation/hwmon/twl4030-madc-hwmon
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   1Kernel driver twl4030-madc
   2=========================
   3
   4Supported chips:
   5        * Texas Instruments TWL4030
   6        Prefix: 'twl4030-madc'
   7
   8
   9Authors:
  10        J Keerthy <j-keerthy@ti.com>
  11
  12Description
  13-----------
  14
  15The Texas Instruments TWL4030 is a Power Management and Audio Circuit. Among
  16other things it contains a 10-bit A/D converter MADC. The converter has 16
  17channels which can be used in different modes.
  18
  19
  20See this table for the meaning of the different channels
  21
  22Channel Signal
  23------------------------------------------
  240       Battery type(BTYPE)
  251       BCI: Battery temperature (BTEMP)
  262       GP analog input
  273       GP analog input
  284       GP analog input
  295       GP analog input
  306       GP analog input
  317       GP analog input
  328       BCI: VBUS voltage(VBUS)
  339       Backup Battery voltage (VBKP)
  3410      BCI: Battery charger current (ICHG)
  3511      BCI: Battery charger voltage (VCHG)
  3612      BCI: Main battery voltage (VBAT)
  3713      Reserved
  3814      Reserved
  3915      VRUSB Supply/Speaker left/Speaker right polarization level
  40
  41
  42The Sysfs nodes will represent the voltage in the units of mV,
  43the temperature channel shows the converted temperature in
  44degree Celsius. The Battery charging current channel represents
  45battery charging current in mA.
  46
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