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Date: Fri, 17 Jul 2015 08:30:22 +0800 From: Peter Chen <peter.chen@...escale.com> To: Roger Quadros <rogerq@...com> CC: <stern@...land.harvard.edu>, <balbi@...com>, <gregkh@...uxfoundation.org>, <dan.j.williams@...el.com>, <jun.li@...escale.com>, <mathias.nyman@...ux.intel.com>, <tony@...mide.com>, <Joao.Pinto@...opsys.com>, <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org> Subject: Re: [PATCH v3 05/11] usb: hcd.h: Add OTG to HCD interface On Wed, Jul 08, 2015 at 01:19:31PM +0300, Roger Quadros wrote: > The OTG core will use struct otg_hcd_ops to > add/remove the HCD controller. > > The main purpose of this interface is to avoid directly > calling usb_add/remove_hcd() from the OTG core as they > wouldn't be defined in the built-in symbol table if > CONFIG_USB is m. > > Signed-off-by: Roger Quadros <rogerq@...com> > --- > include/linux/usb/hcd.h | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h > index c9aa779..4108288 100644 > --- a/include/linux/usb/hcd.h > +++ b/include/linux/usb/hcd.h > @@ -386,6 +386,20 @@ struct hc_driver { > > }; > > +/** > + * struct otg_hcd_ops - Interface between OTG core and HCD > + * > + * Provided by the HCD core to allow the OTG core to start/stop the HCD > + * > + * @add: function to add the HCD > + * @remove: function to remove the HCD > + */ > +struct otg_hcd_ops { > + int (*add)(struct usb_hcd *hcd, > + unsigned int irqnum, unsigned long irqflags); > + void (*remove)(struct usb_hcd *hcd); > +}; > + > static inline int hcd_giveback_urb_in_bh(struct usb_hcd *hcd) > { > return hcd->driver->flags & HCD_BH; > -- > 2.1.4 > Reviewed-by: Peter Chen <peter.chen@...escale.com> -- Best Regards, Peter Chen -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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