Index: uspace/lib/usb/include/usb/request.h
===================================================================
--- uspace/lib/usb/include/usb/request.h	(revision 3b5d1535bfc9adaf4a25ffc08c9ce57104233c08)
+++ uspace/lib/usb/include/usb/request.h	(revision 071b5f8b430d55dd20be1939acd8b6ab73672e65)
@@ -96,4 +96,6 @@
 int usb_request_get_descriptor(usb_endpoint_pipe_t *, usb_request_type_t,
     uint8_t, uint8_t, uint16_t, void *, size_t, size_t *);
+int usb_request_get_descriptor_alloc(usb_endpoint_pipe_t *, usb_request_type_t,
+    uint8_t, uint8_t, uint16_t, void **, size_t *);
 int usb_request_get_device_descriptor(usb_endpoint_pipe_t *,
     usb_standard_device_descriptor_t *);