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- Kernel driver twl4030-madc
- ==========================
- Supported chips:
- * Texas Instruments TWL4030
- Prefix: 'twl4030-madc'
- Authors:
- J Keerthy <[email protected]>
- Description
- -----------
- The Texas Instruments TWL4030 is a Power Management and Audio Circuit. Among
- other things it contains a 10-bit A/D converter MADC. The converter has 16
- channels which can be used in different modes.
- See this table for the meaning of the different channels
- ======= ==========================================================
- Channel Signal
- ======= ==========================================================
- 0 Battery type(BTYPE)
- 1 BCI: Battery temperature (BTEMP)
- 2 GP analog input
- 3 GP analog input
- 4 GP analog input
- 5 GP analog input
- 6 GP analog input
- 7 GP analog input
- 8 BCI: VBUS voltage(VBUS)
- 9 Backup Battery voltage (VBKP)
- 10 BCI: Battery charger current (ICHG)
- 11 BCI: Battery charger voltage (VCHG)
- 12 BCI: Main battery voltage (VBAT)
- 13 Reserved
- 14 Reserved
- 15 VRUSB Supply/Speaker left/Speaker right polarization level
- ======= ==========================================================
- The Sysfs nodes will represent the voltage in the units of mV,
- the temperature channel shows the converted temperature in
- degree Celsius. The Battery charging current channel represents
- battery charging current in mA.
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