| What: /sys/class/power_supply/twl4030_usb/mode | 
 | Description: | 
 | 	Changing mode for USB port. | 
 | 	Writing to this can disable charging. | 
 |  | 
 | 	Possible values are: | 
 |  | 
 | 		=============	=========================================== | 
 | 		"auto"		draw power as appropriate for detected | 
 | 				power source and battery status. | 
 | 		"off"		do not draw any power. | 
 | 		"continuous"	activate mode described as "linear" in | 
 | 				TWL data sheets.  This uses whatever | 
 | 				current is available and doesn't switch off | 
 | 				when voltage drops. | 
 |  | 
 | 				This is useful for unstable power sources | 
 | 				such as bicycle dynamo, but care should | 
 | 				be taken that battery is not over-charged. | 
 | 		=============	=========================================== | 
 |  | 
 | What: /sys/class/power_supply/twl4030_ac/mode | 
 | Description: | 
 | 	Changing mode for 'ac' port. | 
 | 	Writing to this can disable charging. | 
 |  | 
 | 	Possible values are: | 
 |  | 
 | 		======	=========================================== | 
 | 		"auto"	draw power as appropriate for detected | 
 | 			power source and battery status. | 
 | 		"off"	do not draw any power. | 
 | 		======	=========================================== |