Re: Remote wakeup in USB gadget drivers

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On Mon, Jul 20, 2015 at 02:39:58PM -0500, Bin Liu wrote:
> On Mon, Jul 20, 2015 at 2:10 PM, Felipe Balbi <balbi@xxxxxx> wrote:
> > On Mon, Jul 20, 2015 at 02:02:30PM -0500, Bin Liu wrote:
> >> Hi,
> >>
> >> I was trying to understand how remote wakeup works in the gadget framework.
> >>
> >> It seems most UDC drivers define .wakeup() call, which is invoked by
> >> usb_gadget_wakeup() wrapper. But none of the gadget drivers (except
> >> g_zero) calls it. Does it mean the gadget framework does not support
> >> remote wakeup or there is something I missed?
> >>
> >> By the way, I also found [1] which mentions remote wakeup is not
> >> support in gadget, except g_zero.
> >
> > yeah, it needs to be added on a per-gadget basis.
> 
> So there is nothing preventing to add the feature, it was not in there
> (yet) only because no one really wanted it, right?

s/wanted/implemented :-)

I'm sure many would want it, just nobody has sat down to write it.

-- 
balbi

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