projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| aca3c354 N |
1 | What: /sys/class/power_supply/twl4030_ac/max_current |
| 2 | /sys/class/power_supply/twl4030_usb/max_current | |
| 3 | Description: | |
| 4 | Read/Write limit on current which may | |
| 5 | be drawn from the ac (Accessory Charger) or | |
| 6 | USB port. | |
| 7 | ||
| 8 | Value is in micro-Amps. | |
| 9 | ||
| 10 | Value is set automatically to an appropriate | |
| 11 | value when a cable is plugged or unplugged. | |
| 12 | ||
| 13 | Value can the set by writing to the attribute. | |
| 14 | The change will only persist until the next | |
| 15 | plug event. These event are reported via udev. | |
| 22d4c33f N |
16 | |
| 17 | ||
| 18 | What: /sys/class/power_supply/twl4030_usb/mode | |
| 19 | Description: | |
| 20 | Changing mode for USB port. | |
| 21 | Writing to this can disable charging. | |
| 22 | ||
| 23 | Possible values are: | |
| 24 | "auto" - draw power as appropriate for detected | |
| 25 | power source and battery status. | |
| 26 | "off" - do not draw any power. | |
| 7f4a633d N |
27 | "continuous" |
| 28 | - activate mode described as "linear" in | |
| 29 | TWL data sheets. This uses whatever | |
| 30 | current is available and doesn't switch off | |
| 31 | when voltage drops. | |
| 32 | ||
| 33 | This is useful for unstable power sources | |
| 34 | such as bicycle dynamo, but care should | |
| 35 | be taken that battery is not over-charged. | |
| b04b908d N |
36 | |
| 37 | What: /sys/class/power_supply/twl4030_ac/mode | |
| 38 | Description: | |
| 39 | Changing mode for 'ac' port. | |
| 40 | Writing to this can disable charging. | |
| 41 | ||
| 42 | Possible values are: | |
| 43 | "auto" - draw power as appropriate for detected | |
| 44 | power source and battery status. | |
| 45 | "off" - do not draw any power. |