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-rw-r--r--include/linux/usb/composite.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 549f5382b01a..9c3903d76781 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -80,12 +80,16 @@ struct usb_os_desc_ext_prop {
* @ext_prop: Extended Properties list
* @ext_prop_len: Total length of Extended Properties blobs
* @ext_prop_count: Number of Extended Properties
+ * @opts_mutex: Optional mutex protecting config data of a usb_function_instance
+ * @group: Represents OS descriptors associated with an interface in configfs
*/
struct usb_os_desc {
char *ext_compat_id;
struct list_head ext_prop;
int ext_prop_len;
int ext_prop_count;
+ struct mutex *opts_mutex;
+ struct config_group group;
};
/**
@@ -381,6 +385,8 @@ extern void usb_composite_unregister(struct usb_composite_driver *driver);
extern void usb_composite_setup_continue(struct usb_composite_dev *cdev);
extern int composite_dev_prepare(struct usb_composite_driver *composite,
struct usb_composite_dev *cdev);
+extern int composite_os_desc_req_prepare(struct usb_composite_dev *cdev,
+ struct usb_ep *ep0);
void composite_dev_cleanup(struct usb_composite_dev *cdev);
static inline struct usb_composite_driver *to_cdriver(