Index: uspace/lib/usb/src/pipesinit.c
===================================================================
--- uspace/lib/usb/src/pipesinit.c	(revision bc1c6fb3a9cd1a637ac345307fcba605092a2919)
+++ uspace/lib/usb/src/pipesinit.c	(revision 0f3e68cbd50dbeafeb582e04ec8e4362b1dc5b30)
@@ -37,4 +37,5 @@
 #include <usb/pipes.h>
 #include <usb/dp.h>
+#include <usb/request.h>
 #include <errno.h>
 #include <assert.h>
@@ -370,5 +371,23 @@
 	int rc = usb_endpoint_pipe_initialize(pipe, connection,
 	    0, USB_TRANSFER_CONTROL, 8, USB_DIRECTION_BOTH);
-
+	if (rc != EOK) {
+		return rc;
+	}
+	rc = usb_endpoint_pipe_start_session(pipe);
+	if (rc != EOK) {
+		return rc;
+	}
+
+	uint8_t first[8];
+	size_t size = 0;
+	rc = usb_control_request_get(pipe, USB_REQUEST_TYPE_STANDARD,
+	    USB_REQUEST_RECIPIENT_DEVICE, USB_DEVREQ_GET_DESCRIPTOR, 1 << 8,
+			0, first, 8, &size);
+	usb_endpoint_pipe_end_session(pipe);
+	if (rc != EOK || size  != 8) {
+		return rc;
+	}
+
+	pipe->max_packet_size = first[7];
 	return rc;
 }