Index: uspace/lib/usb/src/pipesio.c
===================================================================
--- uspace/lib/usb/src/pipesio.c	(revision 867e673594feb1369f8c454ec96150b18352e54e)
+++ uspace/lib/usb/src/pipesio.c	(revision b36e5de2b3fb91be80216fe929bf2bfee1268933)
@@ -78,7 +78,8 @@
 	 * Make call identifying target USB device and type of transfer.
 	 */
-	aid_t opening_request = async_send_3(pipe->hc_phone,
+	aid_t opening_request = async_send_4(pipe->hc_phone,
 	    DEV_IFACE_ID(USBHC_DEV_IFACE), ipc_method,
 	    pipe->wire->address, pipe->endpoint_no,
+	    pipe->max_packet_size,
 	    NULL);
 	if (opening_request == 0) {
@@ -201,7 +202,8 @@
 	 * Make call identifying target USB device and type of transfer.
 	 */
-	aid_t opening_request = async_send_3(pipe->hc_phone,
+	aid_t opening_request = async_send_4(pipe->hc_phone,
 	    DEV_IFACE_ID(USBHC_DEV_IFACE), ipc_method,
 	    pipe->wire->address, pipe->endpoint_no,
+	    pipe->max_packet_size,
 	    NULL);
 	if (opening_request == 0) {
@@ -283,7 +285,8 @@
 	 * Make call identifying target USB device and control transfer type.
 	 */
-	aid_t opening_request = async_send_3(pipe->hc_phone,
+	aid_t opening_request = async_send_4(pipe->hc_phone,
 	    DEV_IFACE_ID(USBHC_DEV_IFACE), IPC_M_USBHC_CONTROL_READ,
 	    pipe->wire->address, pipe->endpoint_no,
+	    pipe->max_packet_size,
 	    NULL);
 	if (opening_request == 0) {
@@ -402,8 +405,9 @@
 	 * Make call identifying target USB device and control transfer type.
 	 */
-	aid_t opening_request = async_send_4(pipe->hc_phone,
+	aid_t opening_request = async_send_5(pipe->hc_phone,
 	    DEV_IFACE_ID(USBHC_DEV_IFACE), IPC_M_USBHC_CONTROL_WRITE,
 	    pipe->wire->address, pipe->endpoint_no,
 	    data_buffer_size,
+	    pipe->max_packet_size,
 	    NULL);
 	if (opening_request == 0) {