Index: uspace/lib/c/generic/device/pio_window.c
===================================================================
--- uspace/lib/c/generic/device/pio_window.c	(revision 0a42894321fbd1640ea0e2c4d698b82b724a9a2a)
+++ uspace/lib/c/generic/device/pio_window.c	(revision 0a42894321fbd1640ea0e2c4d698b82b724a9a2a)
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2013 Jakub Jermar 
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+ /** @addtogroup libc
+ * @{
+ */
+/** @file
+ */
+
+#include <device/pio_window.h>
+#include <errno.h>
+#include <async.h>
+
+int pio_window_get(async_sess_t *sess, pio_window_t *pio_win)
+{
+	int rc;
+
+	async_exch_t *exch = async_exchange_begin(sess);
+	if (!exch)
+		return ENOMEM;
+
+	rc = async_req_1_0(exch, DEV_IFACE_ID(PIO_WINDOW_DEV_IFACE),
+	    PIO_WINDOW_GET);
+	if (rc != EOK) {
+		async_exchange_end(exch);
+		return rc;
+	}
+	
+	rc = async_data_read_start(exch, pio_win, sizeof(*pio_win));
+	async_exchange_end(exch);
+	
+	return rc;
+}
+
+/** @}
+ */
+