Index: uspace/lib/usbdev/include/usb/dev/pipes.h
===================================================================
--- uspace/lib/usbdev/include/usb/dev/pipes.h	(revision 1561e8bc19cde4c7bdc0823ac01bdadb1fe7b52a)
+++ uspace/lib/usbdev/include/usb/dev/pipes.h	(revision c80448411a8de93942f2321d3e209c33631da03e)
@@ -44,4 +44,5 @@
 #include <usb/dev/usb_device_connection.h>
 
+#define CTRL_PIPE_MIN_PACKET_SIZE 8
 /** Abstraction of a logical connection to USB device endpoint.
  * It encapsulates endpoint attributes (transfer type etc.) as well
@@ -80,5 +81,4 @@
 } usb_pipe_t;
 
-
 /** Description of endpoint characteristics. */
 typedef struct {
@@ -115,5 +115,4 @@
 } usb_endpoint_mapping_t;
 
-
 int usb_pipe_initialize(usb_pipe_t *, usb_device_connection_t *,
     usb_endpoint_t, usb_transfer_type_t, size_t, usb_direction_t);
@@ -124,4 +123,5 @@
 int usb_pipe_initialize_from_configuration(usb_endpoint_mapping_t *,
     size_t, const uint8_t *, size_t, usb_device_connection_t *);
+
 int usb_pipe_register(usb_pipe_t *, unsigned);
 int usb_pipe_unregister(usb_pipe_t *);