| 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. |