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-rw-r--r--include/linux/usb/ch9.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 9c210f2283df..27603bcbb9b9 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -43,4 +43,13 @@
*/
extern const char *usb_speed_string(enum usb_device_speed speed);
+
+/**
+ * usb_state_string - Returns human readable name for the state.
+ * @state: The state to return a human-readable name for. If it's not
+ * any of the states devices in usb_device_state_string enum,
+ * the string UNKNOWN will be returned.
+ */
+extern const char *usb_state_string(enum usb_device_state state);
+
#endif /* __LINUX_USB_CH9_H */