Index: uspace/lib/usb/include/usb/pipes.h
===================================================================
--- uspace/lib/usb/include/usb/pipes.h	(revision 0f21c0c8a600adbbfbe315431bff13a9695a1692)
+++ uspace/lib/usb/include/usb/pipes.h	(revision e936e8e6cbbc25342b3cf6a6345b31510cc8d06f)
@@ -137,4 +137,5 @@
 int usb_endpoint_pipe_start_session(usb_endpoint_pipe_t *);
 int usb_endpoint_pipe_end_session(usb_endpoint_pipe_t *);
+bool usb_endpoint_pipe_is_session_started(usb_endpoint_pipe_t *);
 
 int usb_endpoint_pipe_read(usb_endpoint_pipe_t *, void *, size_t, size_t *);