From 4eec44d84ffb6de469891f493481521ec4d992e2 Mon Sep 17 00:00:00 2001
From: Lukasz Majewski <l.majewski@samsung.com>
Date: Wed, 2 May 2012 13:11:37 +0200
Subject: [PATCH] usb:gadget:composite: Support for composite at gadget.h
Add device data pointer to the USB gadget's device struct.
Wrapper for extracting usb_gadget from Linux's usb device
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Marek Vasut <marex@denx.de>
---
include/linux/usb/gadget.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 275cb5fe15d..eba865ea096 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -411,6 +411,7 @@ struct usb_gadget_ops {
struct device {
void *driver_data; /* data private to the driver */
+ void *device_data; /* data private to the device */
};
/**
@@ -481,6 +482,11 @@ static inline void *get_gadget_data(struct usb_gadget *gadget)
return gadget->dev.driver_data;
}
+static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev)
+{
+ return container_of(dev, struct usb_gadget, dev);
+}
+
/* iterates the non-control endpoints; 'tmp' is a struct usb_ep pointer */
#define gadget_for_each_ep(tmp, gadget) \
list_for_each_entry(tmp, &(gadget)->ep_list, ep_list)
--
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