Re: question on initiating gadget out/in transfer

hi david, thank you for your response.

> .       but i am not sure on how to invoke
> > ins and outs on the gadget side.
>
> In response to a SET_CONFIGURATION request, or
> after that's done sometimes in response to a
> SET_INTERFACE (altsetting) request.

so my assumption is correct? if everything done
correctly the gadget driver should queue a usb
request on an IN and on an OUT endpoint after
SET_CONFIGURATION or SET_INTERFACE?

> >               my theory was that with
> > regular transfers gadget would queue an
> > in and an out request at all times and my driver
> > would call the complete() function once it would
> > fill in the buffer,
>
> If by "fill in the buffer" you copying data from
> the controller FIFO for OUT data, or copying it
> into the corresponding FIFO for IN data, yes ...
>
> Note that you have a simple operational test for
> this, called "Gadget Zero". That code works right,
> so if your it doesn't work right with your driver
> then the problem is in your code.

i have been using the "gadget zero" to write my
controller driver. so far, right before SET_CONFIGURATION,
i see gadget zero enabling both IN and OUT endpoints,
allocating a request and a buffer for each one of them
and then responding to the control request. the i get
two identical GET_DESCRIPTOR(String iInterface),
the gadget zero queues two requests to respond
and that's it. i figured this should be the point where
it would queue an IN and an OUT request but that
never happens. can i still use the requests it allocated
without them being queued?

thank you for your help.

-- ilya

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