Index: uspace/lib/usb/include/usb/pipes.h
===================================================================
--- uspace/lib/usb/include/usb/pipes.h	(revision eb1a2f485e907e821965b3aafca2d8a5355f3518)
+++ uspace/lib/usb/include/usb/pipes.h	(revision 3b5d1535bfc9adaf4a25ffc08c9ce57104233c08)
@@ -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 *);