usb power cycle

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giorgio franchini

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Feb 2, 2014, 3:59:15 AM2/2/14
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hi,
i need to hard reset an usb device that random freezes; there is a way to force a reset power cycling usb 5v aux?
how to use usb_ena output signal?
i tried using sys/class/gpio exporting gpio129 but nothing.
best regards

giorgio

Erik van Luijk

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Feb 2, 2014, 7:51:11 AM2/2/14
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No that is not possible using gpio. The components for USB ena are replaced by 0 ohm resistors. You can use the rtcwake command in Linux in combination with a powerdown. But to enable the wakeup you need to patch the kernel. Check the archives of this mailing list, i have posted the patch approx als year ago.

Regards Erik

Op 2 feb. 2014 09:59 schreef "giorgio franchini" <cvf...@gmail.com> het volgende:
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