| Kernel driver twl4030-madc |
| ========================= |
| |
| Supported chips: |
| * Texas Instruments TWL4030 |
| Prefix: 'twl4030-madc' |
| |
| |
| Authors: |
| J Keerthy <j-keerthy@ti.com> |
| |
| 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. |
