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