Index: uspace/drv/bus/usb/uhcirh/root_hub.c
===================================================================
--- uspace/drv/bus/usb/uhcirh/root_hub.c	(revision e4f8c77d2f0ec68a5943a6b063aaa901dc22d1b4)
+++ uspace/drv/bus/usb/uhcirh/root_hub.c	(revision e4f8c77d2f0ec68a5943a6b063aaa901dc22d1b4)
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2011 Jan Vesely
+ * 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 drvusbuhcirh
+ * @{
+ */
+/** @file
+ * @brief UHCI root hub driver
+ */
+#include <errno.h>
+#include <str_error.h>
+#include <ddi.h>
+#include <usb/debug.h>
+
+#include "root_hub.h"
+
+/** Initialize UHCI root hub instance.
+ *
+ * @param[in] instance Driver memory structure to use.
+ * @param[in] addr Address of I/O registers.
+ * @param[in] size Size of available I/O space.
+ * @param[in] rh Pointer to DDF instance of the root hub driver.
+ * @return Error code.
+ */
+int uhci_root_hub_init(
+  uhci_root_hub_t *instance, void *addr, size_t size, ddf_dev_t *rh)
+{
+	assert(instance);
+	assert(rh);
+
+	/* Allow access to root hub port registers */
+	assert(sizeof(port_status_t) * UHCI_ROOT_HUB_PORT_COUNT <= size);
+	port_status_t *regs;
+	int ret = pio_enable(addr, size, (void**)&regs);
+	if (ret < 0) {
+		usb_log_error(
+		    "Failed(%d) to gain access to port registers at %p: %s.\n",
+		    ret, regs, str_error(ret));
+		return ret;
+	}
+
+	/* Initialize root hub ports */
+	unsigned i = 0;
+	for (; i < UHCI_ROOT_HUB_PORT_COUNT; ++i) {
+		ret = uhci_port_init(
+		    &instance->ports[i], &regs[i], i, ROOT_HUB_WAIT_USEC, rh);
+		if (ret != EOK) {
+			unsigned j = 0;
+			for (;j < i; ++j)
+				uhci_port_fini(&instance->ports[j]);
+			return ret;
+		}
+	}
+
+	return EOK;
+}
+/*----------------------------------------------------------------------------*/
+/** Cleanup UHCI root hub instance.
+ *
+ * @param[in] instance Root hub structure to use.
+ */
+void uhci_root_hub_fini(uhci_root_hub_t* instance)
+{
+	assert(instance);
+	unsigned i = 0;
+	for (; i < UHCI_ROOT_HUB_PORT_COUNT; ++i) {
+		uhci_port_fini(&instance->ports[i]);
+	}
+}
+/*----------------------------------------------------------------------------*/
+/**
+ * @}
+ */