usb: gadget: f_eem: add configfs support
f_eem learns about our configfs interface so we
can remove in-kernel gadget drivers in future.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/gadget/u_eem.h b/drivers/usb/gadget/u_eem.h
index 8f432f2..e3ae978 100644
--- a/drivers/usb/gadget/u_eem.h
+++ b/drivers/usb/gadget/u_eem.h
@@ -22,6 +22,15 @@
struct usb_function_instance func_inst;
struct net_device *net;
bool bound;
+
+ /*
+ * Read/write access to configfs attributes is handled by configfs.
+ *
+ * This is to protect the data from concurrent access by read/write
+ * and create symlink/remove symlink.
+ */
+ struct mutex lock;
+ int refcnt;
};
#endif /* U_EEM_H */