On Mon, 2015-12-21 at 17:34 +0530, Vikas Bansal wrote:
> Pre-Condition
> At the time of reset resume of a USB device, both self and bus powered
> devices might go to a low power state or power off state depending on the
> acceptable suspend time power of the system.
> In case the device experiences a power glitch or completely powers off during
> suspend-resume, the device will lose its internal state and hence it'll again
> need a set interface from class driver on reset resume operation.
>
> Issue
> So far our experiments were based on a USB gadget working on cdc_eem
> protocol.
> We have seen that device is unable to continue the packet transfer on bulk
> endpoints after the reset resume operation.
>
> Solution
> We have added a .reset_resume function for cdc_eem protocol which sends a set
> interface command on the Control endpoint. And calls the existing
> usbnet_resume thereafte
Hi,
something is wrong with your subject line. Could you fix
that and resend?
Regards
Oliver
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