From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roger Quadros Subject: [PATCH v6 05/12] usb: gadget.h: Add OTG to gadget interface Date: Tue, 5 Apr 2016 17:05:10 +0300 Message-ID: <1459865117-7032-6-git-send-email-rogerq@ti.com> References: <1459865117-7032-1-git-send-email-rogerq@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1459865117-7032-1-git-send-email-rogerq@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: stern@rowland.harvard.edu, balbi@kernel.org, gregkh@linuxfoundation.org, peter.chen@freescale.com Cc: dan.j.williams@intel.com, jun.li@freescale.com, mathias.nyman@linux.intel.com, tony@atomide.com, Joao.Pinto@synopsys.com, abrestic@chromium.org, r.baldyga@samsung.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, Roger Quadros List-Id: linux-omap@vger.kernel.org The OTG core will use struct otg_gadget_ops to start/stop the gadget controller. The main purpose of this interface is to avoid directly calling usb_gadget_start/stop() from the OTG core as they wouldn't be defined in the built-in symbol table if CONFIG_USB_GADGET is m. Signed-off-by: Roger Quadros Reviewed-by: Peter Chen --- include/linux/usb/gadget.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 5d4e151..8c0ae64 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -1100,6 +1100,20 @@ struct usb_gadget_driver { }; +/*-------------------------------------------------------------------------*/ + +/** + * struct otg_gadget_ops - Interface between OTG core and gadget + * + * Provided by the gadget core to allow the OTG core to start/stop the gadget + * + * @start: function to start the gadget + * @stop: function to stop the gadget + */ +struct otg_gadget_ops { + int (*start)(struct usb_gadget *gadget); + int (*stop)(struct usb_gadget *gadget); +}; /*-------------------------------------------------------------------------*/ -- 2.5.0