Index: uspace/lib/usbdev/src/pipes.c
===================================================================
--- uspace/lib/usbdev/src/pipes.c	(revision 79ae36ddc409577eb0da3750b3a7280e034566a2)
+++ uspace/lib/usbdev/src/pipes.c	(revision 9f7276d086028d3d36b9d3638e5d4759150cd6c9)
@@ -81,5 +81,5 @@
 {
 	async_sess_t *parent_sess =
-	    devman_parent_device_connect(EXCHANGE_SERIALIZE, device->handle,
+	    devman_parent_device_connect(EXCHANGE_ATOMIC, device->handle,
 	    IPC_FLAG_BLOCKING);
 	if (!parent_sess)
@@ -122,5 +122,5 @@
 	
 	async_sess_t *parent_sess =
-	    devman_parent_device_connect(EXCHANGE_SERIALIZE, dev->handle,
+	    devman_parent_device_connect(EXCHANGE_ATOMIC, dev->handle,
 	    IPC_FLAG_BLOCKING);
 	if (!parent_sess)