From dfea9c94837d27e38c8cc85a3c1c7c268973c3c2 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Fri, 6 Mar 2015 10:36:02 +0800 Subject: usb: udc: store usb_udc pointer in struct usb_gadget Instead of iterate to find usb_udc according to usb_gadget, this way is easier. Alan Stern suggests this way too: http://marc.info/?l=linux-usb&m=142168496528894&w=2 Acked-by: Alan Stern Signed-off-by: Peter Chen Signed-off-by: Felipe Balbi --- include/linux/usb/gadget.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 02476b3a1109..242c694a5b85 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -474,6 +474,7 @@ struct usb_dcd_config_params { struct usb_gadget; struct usb_gadget_driver; +struct usb_udc; /* the rest of the api to the controller hardware: device operations, * which don't involve endpoints (or i/o). @@ -496,6 +497,7 @@ struct usb_gadget_ops { /** * struct usb_gadget - represents a usb slave device * @work: (internal use) Workqueue to be used for sysfs_notify() + * @udc: struct usb_udc pointer for this gadget * @ops: Function pointers used to access hardware-specific operations. * @ep0: Endpoint zero, used when reading or writing responses to * driver setup() requests @@ -545,6 +547,7 @@ struct usb_gadget_ops { */ struct usb_gadget { struct work_struct work; + struct usb_udc *udc; /* readonly to gadget driver */ const struct usb_gadget_ops *ops; struct usb_ep *ep0; -- cgit v1.2.3