On Tue, 19 Aug 2014, Peter Chen wrote:
> > > --- a/include/linux/usb/gadget.h
> > > +++ b/include/linux/usb/gadget.h
> > > @@ -873,12 +873,39 @@ struct usb_gadget_driver {
> > > void (*disconnect)(struct usb_gadget *);
> > > void (*suspend)(struct usb_gadget *);
> > > void (*resume)(struct usb_gadget *);
> > > + int (*connect)(struct usb_gadget *, bool connect);
> > >
> > > /* FIXME support safe rmmod */
> > > struct device_driver driver;
> > > };
> >
> > This looks strange. Why do you have the "bool connect" parameter?
>
> How can I tell the gadget driver to pull down dp after vbus is off?
>
> > There's already a disconnect callback.
>
> Maybe I need to use other name rather than connect, the .disconnect sometimes
> is called at bus reset handler so I can't put dp control in it.
We could fix that. Right now there are only about four files that
define a usb_gadget_driver structure. All you have to do is make sure
they each contain a reset handler.
Alan Stern
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