[QT Extended Improved] patch: 0001-using-uevent-to-get-kernel-notifications-for-usb-cable-changed.txt

Franky Van Liedekerke liedekef at telenet.be
Thu Apr 2 09:22:33 CEST 2009

On Wed, Apr 1, 2009 at 8:48 AM, Filip Onkelinx <filip at linux4.be> wrote:

> Hi,
> attached is a patch to use uevent to get kernel notifications for
> 'usb-cable-changed' in QtExtended on recent kernels (>=2.6.28).
> On 'older' kernels (<2.6.28), this information was comming in trough
> /dev/input/event4 but this is no longer working (there is a ticket for this
> at https://docs.openmoko.org/trac/ticket/2254 ).
> With this patch my FR switches correctly from battery power savings scheme
> to online pwoer scheme, and usb networking goes up/down as expected.
> Same mechanism could be used to re-implement an event based neobattery.


does this mean the 2.6.28 based system detects usb cable changed, just for
networking? Or does the battery start charging as well?

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