| Keerthy | 0070bdd | 2011-03-01 19:12:36 +0530 | [diff] [blame^] | 1 | Kernel driver twl4030-madc |
| 2 | ========================= |
| 3 | |
| 4 | Supported chips: |
| 5 | * Texas Instruments TWL4030 |
| 6 | Prefix: 'twl4030-madc' |
| 7 | |
| 8 | |
| 9 | Authors: |
| 10 | J Keerthy <j-keerthy@ti.com> |
| 11 | |
| 12 | Description |
| 13 | ----------- |
| 14 | |
| 15 | The Texas Instruments TWL4030 is a Power Management and Audio Circuit. Among |
| 16 | other things it contains a 10-bit A/D converter MADC. The converter has 16 |
| 17 | channels which can be used in different modes. |
| 18 | |
| 19 | |
| 20 | See this table for the meaning of the different channels |
| 21 | |
| 22 | Channel Signal |
| 23 | ------------------------------------------ |
| 24 | 0 Battery type(BTYPE) |
| 25 | 1 BCI: Battery temperature (BTEMP) |
| 26 | 2 GP analog input |
| 27 | 3 GP analog input |
| 28 | 4 GP analog input |
| 29 | 5 GP analog input |
| 30 | 6 GP analog input |
| 31 | 7 GP analog input |
| 32 | 8 BCI: VBUS voltage(VBUS) |
| 33 | 9 Backup Battery voltage (VBKP) |
| 34 | 10 BCI: Battery charger current (ICHG) |
| 35 | 11 BCI: Battery charger voltage (VCHG) |
| 36 | 12 BCI: Main battery voltage (VBAT) |
| 37 | 13 Reserved |
| 38 | 14 Reserved |
| 39 | 15 VRUSB Supply/Speaker left/Speaker right polarization level |
| 40 | |
| 41 | |
| 42 | The Sysfs nodes will represent the voltage in the units of mV, |
| 43 | the temperature channel shows the converted temperature in |
| 44 | degree celcius. The Battery charging current channel represents |
| 45 | battery charging current in mA. |