Index: uspace/lib/drv/generic/driver.c
===================================================================
--- uspace/lib/drv/generic/driver.c	(revision 95120c34f60b564aa35d9c46f9bca43e98681681)
+++ uspace/lib/drv/generic/driver.c	(revision dde2c909ae78adc75e2a57f90c8bc2db69a43bc9)
@@ -1,4 +1,5 @@
 /*
  * Copyright (c) 2010 Lenka Trochtova
+ * Copyright (c) 2011 Jiri Svoboda
  * All rights reserved.
  *
@@ -49,9 +50,11 @@
 #include <errno.h>
 #include <inttypes.h>
+#include <devman.h>
 
 #include <ipc/driver.h>
 
 #include "dev_iface.h"
-#include "driver.h"
+#include "ddf/driver.h"
+#include "ddf/interrupt.h"
 
 /** Driver structure */
@@ -59,6 +62,6 @@
 
 /** Devices */
-LIST_INITIALIZE(devices);
-FIBRIL_MUTEX_INITIALIZE(devices_mutex);
+LIST_INITIALIZE(functions);
+FIBRIL_MUTEX_INITIALIZE(functions_mutex);
 
 /** Interrupts */
@@ -76,4 +79,8 @@
 };
 
+static ddf_dev_t *create_device(void);
+static void delete_device(ddf_dev_t *);
+static remote_handler_t *function_get_default_handler(ddf_fun_t *);
+static void *function_get_ops(ddf_fun_t *, dev_inferface_idx_t);
 
 static void driver_irq_handler(ipc_callid_t iid, ipc_call_t *icall)
@@ -150,5 +157,5 @@
 
 interrupt_context_t *
-find_interrupt_context(interrupt_context_list_t *list, device_t *dev, int irq)
+find_interrupt_context(interrupt_context_list_t *list, ddf_dev_t *dev, int irq)
 {
 	fibril_mutex_lock(&list->mutex);
@@ -172,5 +179,5 @@
 
 int
-register_interrupt_handler(device_t *dev, int irq, interrupt_handler_t *handler,
+register_interrupt_handler(ddf_dev_t *dev, int irq, interrupt_handler_t *handler,
     irq_code_t *pseudocode)
 {
@@ -195,5 +202,5 @@
 }
 
-int unregister_interrupt_handler(device_t *dev, int irq)
+int unregister_interrupt_handler(ddf_dev_t *dev, int irq)
 {
 	interrupt_context_t *ctx = find_interrupt_context(&interrupt_contexts,
@@ -209,35 +216,36 @@
 }
 
-static void add_to_devices_list(device_t *dev)
-{
-	fibril_mutex_lock(&devices_mutex);
-	list_append(&dev->link, &devices);
-	fibril_mutex_unlock(&devices_mutex);
-}
-
-static void remove_from_devices_list(device_t *dev)
-{
-	fibril_mutex_lock(&devices_mutex);
-	list_remove(&dev->link);
-	fibril_mutex_unlock(&devices_mutex);
-}
-
-static device_t *driver_get_device(link_t *devices, devman_handle_t handle)
-{
-	device_t *dev = NULL;
-	
-	fibril_mutex_lock(&devices_mutex);
-	link_t *link = devices->next;
-	
-	while (link != devices) {
-		dev = list_get_instance(link, device_t, link);
-		if (dev->handle == handle) {
-			fibril_mutex_unlock(&devices_mutex);
-			return dev;
+static void add_to_functions_list(ddf_fun_t *fun)
+{
+	fibril_mutex_lock(&functions_mutex);
+	list_append(&fun->link, &functions);
+	fibril_mutex_unlock(&functions_mutex);
+}
+
+static void remove_from_functions_list(ddf_fun_t *fun)
+{
+	fibril_mutex_lock(&functions_mutex);
+	list_remove(&fun->link);
+	fibril_mutex_unlock(&functions_mutex);
+}
+
+static ddf_fun_t *driver_get_function(link_t *functions, devman_handle_t handle)
+{
+	ddf_fun_t *fun = NULL;
+	
+	fibril_mutex_lock(&functions_mutex);
+	link_t *link = functions->next;
+	
+	while (link != functions) {
+		fun = list_get_instance(link, ddf_fun_t, link);
+		if (fun->handle == handle) {
+			fibril_mutex_unlock(&functions_mutex);
+			return fun;
 		}
+		
 		link = link->next;
 	}
 	
-	fibril_mutex_unlock(&devices_mutex);
+	fibril_mutex_unlock(&functions_mutex);
 	
 	return NULL;
@@ -250,14 +258,17 @@
 	
 	devman_handle_t dev_handle = IPC_GET_ARG1(*icall);
-    	devman_handle_t parent_dev_handle = IPC_GET_ARG2(*icall);
-	
-	device_t *dev = create_device();
+    	devman_handle_t parent_fun_handle = IPC_GET_ARG2(*icall);
+	
+	ddf_dev_t *dev = create_device();
 	dev->handle = dev_handle;
-	
+
 	async_data_write_accept((void **) &dev_name, true, 0, 0, 0, 0);
 	dev->name = dev_name;
-	
-	add_to_devices_list(dev);
-	dev->parent = driver_get_device(&devices, parent_dev_handle);
+
+	/*
+	 * Currently not used, parent fun handle is stored in context
+	 * of the connection to the parent device driver.
+	 */
+	(void) parent_fun_handle;
 	
 	res = driver->driver_ops->add_device(dev);
@@ -268,5 +279,4 @@
 		printf("%s: failed to add a new device with handle = %" PRIun ".\n",
 		    driver->name, dev_handle);
-		remove_from_devices_list(dev);
 		delete_device(dev);
 	}
@@ -311,8 +321,8 @@
 	 */
 	devman_handle_t handle = IPC_GET_ARG2(*icall);
-	device_t *dev = driver_get_device(&devices, handle);
-
-	if (dev == NULL) {
-		printf("%s: driver_connection_gen error - no device with handle"
+	ddf_fun_t *fun = driver_get_function(&functions, handle);
+
+	if (fun == NULL) {
+		printf("%s: driver_connection_gen error - no function with handle"
 		    " %" PRIun " was found.\n", driver->name, handle);
 		async_answer_0(iid, ENOENT);
@@ -327,7 +337,7 @@
 	
 	int ret = EOK;
-	/* open the device */
-	if (dev->ops != NULL && dev->ops->open != NULL)
-		ret = (*dev->ops->open)(dev);
+	/* Open device function */
+	if (fun->ops != NULL && fun->ops->open != NULL)
+		ret = (*fun->ops->open)(fun);
 	
 	async_answer_0(iid, ret);
@@ -344,7 +354,7 @@
 		switch  (method) {
 		case IPC_M_PHONE_HUNGUP:
-			/* close the device */
-			if (dev->ops != NULL && dev->ops->close != NULL)
-				(*dev->ops->close)(dev);
+			/* Close device function */
+			if (fun->ops != NULL && fun->ops->close != NULL)
+				(*fun->ops->close)(fun);
 			async_answer_0(callid, EOK);
 			return;
@@ -356,11 +366,12 @@
 			if (!is_valid_iface_idx(iface_idx)) {
 				remote_handler_t *default_handler =
-				    device_get_default_handler(dev);
+				    function_get_default_handler(fun);
 				if (default_handler != NULL) {
-					(*default_handler)(dev, callid, &call);
+					(*default_handler)(fun, callid, &call);
 					break;
 				}
+				
 				/*
-				 * This is not device's interface and the
+				 * Function has no such interface and
 				 * default handler is not provided.
 				 */
@@ -372,12 +383,12 @@
 			}
 			
-			/* calling one of the device's interfaces */
+			/* calling one of the function's interfaces */
 			
 			/* Get the interface ops structure. */
-			void *ops = device_get_ops(dev, iface_idx);
+			void *ops = function_get_ops(fun, iface_idx);
 			if (ops == NULL) {
 				printf("%s: driver_connection_gen error - ",
 				    driver->name);
-				printf("device with handle %" PRIun " has no interface "
+				printf("Function with handle %" PRIun " has no interface "
 				    "with id %d.\n", handle, iface_idx);
 				async_answer_0(callid, ENOTSUP);
@@ -408,7 +419,7 @@
 			 * receive parameters from the remote client and it will
 			 * pass it to the corresponding local interface method
-			 * associated with the device by its driver.
+			 * associated with the function by its driver.
 			 */
-			(*iface_method_ptr)(dev, ops, callid, &call);
+			(*iface_method_ptr)(fun, ops, callid, &call);
 			break;
 		}
@@ -425,5 +436,4 @@
 	driver_connection_gen(iid, icall, false);
 }
-
 
 /** Function for handling connections to device driver. */
@@ -454,125 +464,200 @@
  * @return		The device structure.
  */
-device_t *create_device(void)
-{
-	device_t *dev = malloc(sizeof(device_t));
-
-	if (dev != NULL) {
-		memset(dev, 0, sizeof(device_t));
-		init_match_ids(&dev->match_ids);
-	}
-
+static ddf_dev_t *create_device(void)
+{
+	ddf_dev_t *dev;
+
+	dev = malloc(sizeof(ddf_dev_t));
+	if (dev == NULL)
+		return NULL;
+
+	memset(dev, 0, sizeof(ddf_dev_t));
 	return dev;
 }
 
+/** Create new function structure.
+ *
+ * @return		The device structure.
+ */
+static ddf_fun_t *create_function(void)
+{
+	ddf_fun_t *fun;
+
+	fun = calloc(1, sizeof(ddf_fun_t));
+	if (fun == NULL)
+		return NULL;
+
+	init_match_ids(&fun->match_ids);
+	link_initialize(&fun->link);
+
+	return fun;
+}
+
 /** Delete device structure.
  *
  * @param dev		The device structure.
  */
-void delete_device(device_t *dev)
-{
-	clean_match_ids(&dev->match_ids);
-	if (dev->name != NULL)
-		free(dev->name);
+static void delete_device(ddf_dev_t *dev)
+{
 	free(dev);
 }
 
-void *device_get_ops(device_t *dev, dev_inferface_idx_t idx)
+/** Delete device structure.
+ *
+ * @param dev		The device structure.
+ */
+static void delete_function(ddf_fun_t *fun)
+{
+	clean_match_ids(&fun->match_ids);
+	if (fun->name != NULL)
+		free(fun->name);
+	free(fun);
+}
+
+/** Create a DDF function node.
+ *
+ * Create a DDF function (in memory). Both child devices and external clients
+ * communicate with a device via its functions.
+ *
+ * The created function node is fully formed, but only exists in the memory
+ * of the client task. In order to be visible to the system, the function
+ * must be bound using ddf_fun_bind().
+ *
+ * This function should only fail if there is not enough free memory.
+ * Specifically, this function succeeds even if @a dev already has
+ * a (bound) function with the same name.
+ *
+ * Type: A function of type fun_inner indicates that DDF should attempt
+ * to attach child devices to the function. fun_exposed means that
+ * the function should be exported to external clients (applications).
+ *
+ * @param dev		Device to which we are adding function
+ * @param ftype		Type of function (fun_inner or fun_exposed)
+ * @param name		Name of function
+ *
+ * @return		New function or @c NULL if memory is not available
+ */
+ddf_fun_t *ddf_fun_create(ddf_dev_t *dev, fun_type_t ftype, const char *name)
+{
+	ddf_fun_t *fun;
+
+	fun = create_function();
+	if (fun == NULL)
+		return NULL;
+
+	fun->bound = false;
+	fun->dev = dev;
+	fun->ftype = ftype;
+
+	fun->name = str_dup(name);
+	if (fun->name == NULL) {
+		delete_function(fun);
+		return NULL;
+	}
+
+	return fun;
+}
+
+/** Destroy DDF function node.
+ *
+ * Destroy a function previously created with ddf_fun_create(). The function
+ * must not be bound.
+ *
+ * @param fun		Function to destroy
+ */
+void ddf_fun_destroy(ddf_fun_t *fun)
+{
+	assert(fun->bound == false);
+	delete_function(fun);
+}
+
+static void *function_get_ops(ddf_fun_t *fun, dev_inferface_idx_t idx)
 {
 	assert(is_valid_iface_idx(idx));
-	if (dev->ops == NULL)
+	if (fun->ops == NULL)
 		return NULL;
-	return dev->ops->interfaces[idx];
-}
-
-int child_device_register(device_t *child, device_t *parent)
-{
-	assert(child->name != NULL);
+	return fun->ops->interfaces[idx];
+}
+
+/** Bind a function node.
+ *
+ * Bind the specified function to the system. This effectively makes
+ * the function visible to the system (uploads it to the server).
+ *
+ * This function can fail for several reasons. Specifically,
+ * it will fail if the device already has a bound function of
+ * the same name.
+ *
+ * @param fun		Function to bind
+ * @return		EOK on success or negative error code
+ */
+int ddf_fun_bind(ddf_fun_t *fun)
+{
+	assert(fun->name != NULL);
 	
 	int res;
 	
-	add_to_devices_list(child);
-	res = devman_child_device_register(child->name, &child->match_ids,
-	    parent->handle, &child->handle);
+	add_to_functions_list(fun);
+	res = devman_add_function(fun->name, fun->ftype, &fun->match_ids,
+	    fun->dev->handle, &fun->handle);
 	if (res != EOK) {
-		remove_from_devices_list(child);
+		remove_from_functions_list(fun);
 		return res;
 	}
 	
+	fun->bound = true;
 	return res;
 }
 
-/** Wrapper for child_device_register for devices with single match id.
- *
- * @param parent Parent device.
- * @param child_name Child device name.
- * @param child_match_id Child device match id.
- * @param child_match_score Child device match score.
- * @return Error code.
- */
-int child_device_register_wrapper(device_t *parent, const char *child_name,
-    const char *child_match_id, int child_match_score,
-    devman_handle_t *child_handle)
-{
-	device_t *child = NULL;
-	match_id_t *match_id = NULL;
-	int rc;
-	
-	child = create_device();
-	if (child == NULL) {
-		rc = ENOMEM;
-		goto failure;
-	}
-	
-	child->name = child_name;
+/** Add single match ID to inner function.
+ *
+ * Construct and add a single match ID to the specified function.
+ * Cannot be called when the function node is bound.
+ *
+ * @param fun			Function
+ * @param match_id_str		Match string
+ * @param match_score		Match score
+ * @return			EOK on success, ENOMEM if out of memory.
+ */
+int ddf_fun_add_match_id(ddf_fun_t *fun, const char *match_id_str,
+    int match_score)
+{
+	match_id_t *match_id;
+	
+	assert(fun->bound == false);
+	assert(fun->ftype == fun_inner);
 	
 	match_id = create_match_id();
-	if (match_id == NULL) {
-		rc = ENOMEM;
-		goto failure;
-	}
-	
-	match_id->id = child_match_id;
-	match_id->score = child_match_score;
-	add_match_id(&child->match_ids, match_id);
-	
-	rc = child_device_register(child, parent);
-	if (rc != EOK)
-		goto failure;
-
-	if (child_handle != NULL) {
-		*child_handle = child->handle;
-	}
-
+	if (match_id == NULL)
+		return ENOMEM;
+	
+	match_id->id = match_id_str;
+	match_id->score = 90;
+	
+	add_match_id(&fun->match_ids, match_id);
 	return EOK;
-	
-failure:
-	if (match_id != NULL) {
-		match_id->id = NULL;
-		delete_match_id(match_id);
-	}
-	
-	if (child != NULL) {
-		child->name = NULL;
-		delete_device(child);
-	}
-	
-	return rc;
 }
 
 /** Get default handler for client requests */
-remote_handler_t *device_get_default_handler(device_t *dev)
-{
-	if (dev->ops == NULL)
+static remote_handler_t *function_get_default_handler(ddf_fun_t *fun)
+{
+	if (fun->ops == NULL)
 		return NULL;
-	return dev->ops->default_handler;
-}
-
-int add_device_to_class(device_t *dev, const char *class_name)
-{
-	return devman_add_device_to_class(dev->handle, class_name);
-}
-
-int driver_main(driver_t *drv)
+	return fun->ops->default_handler;
+}
+
+/** Add exposed function to class.
+ *
+ * Must only be called when the function is bound.
+ */
+int ddf_fun_add_to_class(ddf_fun_t *fun, const char *class_name)
+{
+	assert(fun->bound == true);
+	assert(fun->ftype == fun_exposed);
+	
+	return devman_add_device_to_class(fun->handle, class_name);
+}
+
+int ddf_driver_main(driver_t *drv)
 {
 	/*
Index: uspace/lib/drv/generic/remote_char_dev.c
===================================================================
--- uspace/lib/drv/generic/remote_char_dev.c	(revision 95120c34f60b564aa35d9c46f9bca43e98681681)
+++ uspace/lib/drv/generic/remote_char_dev.c	(revision dde2c909ae78adc75e2a57f90c8bc2db69a43bc9)
@@ -37,10 +37,10 @@
 
 #include "ops/char_dev.h"
-#include "driver.h"
+#include "ddf/driver.h"
 
 #define MAX_CHAR_RW_COUNT 256
 
-static void remote_char_read(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_char_write(device_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_char_read(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_char_write(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
 
 /** Remote character interface operations. */
@@ -67,9 +67,9 @@
  * local interface to the remote client.
  *
- * @param dev		The device from which the data are read.
+ * @param fun		The function from which the data are read.
  * @param ops		The local ops structure.
  */
 static void
-remote_char_read(device_t *dev, void *ops, ipc_callid_t callid,
+remote_char_read(ddf_fun_t *fun, void *ops, ipc_callid_t callid,
     ipc_call_t *call)
 {
@@ -94,5 +94,5 @@
 	
 	char buf[MAX_CHAR_RW_COUNT];
-	int ret = (*char_dev_ops->read)(dev, buf, len);
+	int ret = (*char_dev_ops->read)(fun, buf, len);
 	
 	if (ret < 0) {
@@ -114,9 +114,9 @@
  * local interface to the remote client.
  *
- * @param dev		The device to which the data are written.
+ * @param fun		The function to which the data are written.
  * @param ops		The local ops structure.
  */
 static void
-remote_char_write(device_t *dev, void *ops, ipc_callid_t callid,
+remote_char_write(ddf_fun_t *fun, void *ops, ipc_callid_t callid,
     ipc_call_t *call)
 {
@@ -144,5 +144,5 @@
 	async_data_write_finalize(cid, buf, len);
 	
-	int ret = (*char_dev_ops->write)(dev, buf, len);
+	int ret = (*char_dev_ops->write)(fun, buf, len);
 	if (ret < 0) {
 		/* Some error occured. */
Index: uspace/lib/drv/generic/remote_hw_res.c
===================================================================
--- uspace/lib/drv/generic/remote_hw_res.c	(revision 95120c34f60b564aa35d9c46f9bca43e98681681)
+++ uspace/lib/drv/generic/remote_hw_res.c	(revision dde2c909ae78adc75e2a57f90c8bc2db69a43bc9)
@@ -37,9 +37,9 @@
 
 #include "ops/hw_res.h"
-#include "driver.h"
+#include "ddf/driver.h"
 
-static void remote_hw_res_get_resource_list(device_t *, void *, ipc_callid_t,
+static void remote_hw_res_get_resource_list(ddf_fun_t *, void *, ipc_callid_t,
     ipc_call_t *);
-static void remote_hw_res_enable_interrupt(device_t *, void *, ipc_callid_t,
+static void remote_hw_res_enable_interrupt(ddf_fun_t *, void *, ipc_callid_t,
     ipc_call_t *);
 
@@ -55,5 +55,5 @@
 };
 
-static void remote_hw_res_enable_interrupt(device_t *dev, void *ops,
+static void remote_hw_res_enable_interrupt(ddf_fun_t *fun, void *ops,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -62,5 +62,5 @@
 	if (hw_res_ops->enable_interrupt == NULL)
 		async_answer_0(callid, ENOTSUP);
-	else if (hw_res_ops->enable_interrupt(dev))
+	else if (hw_res_ops->enable_interrupt(fun))
 		async_answer_0(callid, EOK);
 	else
@@ -68,5 +68,5 @@
 }
 
-static void remote_hw_res_get_resource_list(device_t *dev, void *ops,
+static void remote_hw_res_get_resource_list(ddf_fun_t *fun, void *ops,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -78,5 +78,5 @@
 	}
 	
-	hw_resource_list_t *hw_resources = hw_res_ops->get_resource_list(dev);
+	hw_resource_list_t *hw_resources = hw_res_ops->get_resource_list(fun);
 	if (hw_resources == NULL){
 		async_answer_0(callid, ENOENT);
Index: uspace/lib/drv/generic/remote_usb.c
===================================================================
--- uspace/lib/drv/generic/remote_usb.c	(revision 95120c34f60b564aa35d9c46f9bca43e98681681)
+++ uspace/lib/drv/generic/remote_usb.c	(revision dde2c909ae78adc75e2a57f90c8bc2db69a43bc9)
@@ -37,10 +37,10 @@
 
 #include "usb_iface.h"
-#include "driver.h"
+#include "ddf/driver.h"
 
 
-static void remote_usb_get_address(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_usb_get_interface(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_usb_get_hc_handle(device_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usb_get_address(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usb_get_interface(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usb_get_hc_handle(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
 //static void remote_usb(device_t *, void *, ipc_callid_t, ipc_call_t *);
 
@@ -61,5 +61,5 @@
 
 
-void remote_usb_get_address(device_t *device, void *iface,
+void remote_usb_get_address(ddf_fun_t *fun, void *iface,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -74,5 +74,5 @@
 
 	usb_address_t address;
-	int rc = usb_iface->get_address(device, handle, &address);
+	int rc = usb_iface->get_address(fun, handle, &address);
 	if (rc != EOK) {
 		async_answer_0(callid, rc);
@@ -82,5 +82,5 @@
 }
 
-void remote_usb_get_interface(device_t *device, void *iface,
+void remote_usb_get_interface(ddf_fun_t *fun, void *iface,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -95,5 +95,5 @@
 
 	int iface_no;
-	int rc = usb_iface->get_interface(device, handle, &iface_no);
+	int rc = usb_iface->get_interface(fun, handle, &iface_no);
 	if (rc != EOK) {
 		async_answer_0(callid, rc);
@@ -103,5 +103,5 @@
 }
 
-void remote_usb_get_hc_handle(device_t *device, void *iface,
+void remote_usb_get_hc_handle(ddf_fun_t *fun, void *iface,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -114,5 +114,5 @@
 
 	devman_handle_t handle;
-	int rc = usb_iface->get_hc_handle(device, &handle);
+	int rc = usb_iface->get_hc_handle(fun, &handle);
 	if (rc != EOK) {
 		async_answer_0(callid, rc);
Index: uspace/lib/drv/generic/remote_usbhc.c
===================================================================
--- uspace/lib/drv/generic/remote_usbhc.c	(revision 95120c34f60b564aa35d9c46f9bca43e98681681)
+++ uspace/lib/drv/generic/remote_usbhc.c	(revision dde2c909ae78adc75e2a57f90c8bc2db69a43bc9)
@@ -35,7 +35,8 @@
 #include <async.h>
 #include <errno.h>
+#include <assert.h>
 
 #include "usbhc_iface.h"
-#include "driver.h"
+#include "ddf/driver.h"
 
 #define USB_MAX_PAYLOAD_SIZE 1020
@@ -43,16 +44,16 @@
 #define HACK_MAX_PACKET_SIZE_INTERRUPT_IN 4
 
-static void remote_usbhc_interrupt_out(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_usbhc_interrupt_in(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_usbhc_bulk_out(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_usbhc_bulk_in(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_usbhc_control_write(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_usbhc_control_read(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_usbhc_reserve_default_address(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_usbhc_release_default_address(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_usbhc_request_address(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_usbhc_bind_address(device_t *, void *, ipc_callid_t, ipc_call_t *);
-static void remote_usbhc_release_address(device_t *, void *, ipc_callid_t, ipc_call_t *);
-//static void remote_usbhc(device_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usbhc_interrupt_out(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usbhc_interrupt_in(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usbhc_bulk_out(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usbhc_bulk_in(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usbhc_control_write(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usbhc_control_read(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usbhc_reserve_default_address(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usbhc_release_default_address(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usbhc_request_address(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usbhc_bind_address(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+static void remote_usbhc_release_address(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
+//static void remote_usbhc(ddf_fun_t *, void *, ipc_callid_t, ipc_call_t *);
 
 /** Remote USB host controller interface operations. */
@@ -123,5 +124,5 @@
 }
 
-void remote_usbhc_reserve_default_address(device_t *device, void *iface,
+void remote_usbhc_reserve_default_address(ddf_fun_t *fun, void *iface,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -135,10 +136,10 @@
 	usb_speed_t speed = DEV_IPC_GET_ARG1(*call);
 	
-	int rc = usb_iface->reserve_default_address(device, speed);
+	int rc = usb_iface->reserve_default_address(fun, speed);
 
 	async_answer_0(callid, rc);
 }
 
-void remote_usbhc_release_default_address(device_t *device, void *iface,
+void remote_usbhc_release_default_address(ddf_fun_t *fun, void *iface,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -150,10 +151,10 @@
 	}
 
-	int rc = usb_iface->release_default_address(device);
+	int rc = usb_iface->release_default_address(fun);
 
 	async_answer_0(callid, rc);
 }
 
-void remote_usbhc_request_address(device_t *device, void *iface,
+void remote_usbhc_request_address(ddf_fun_t *fun, void *iface,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -168,5 +169,5 @@
 
 	usb_address_t address;
-	int rc = usb_iface->request_address(device, speed, &address);
+	int rc = usb_iface->request_address(fun, speed, &address);
 	if (rc != EOK) {
 		async_answer_0(callid, rc);
@@ -176,5 +177,5 @@
 }
 
-void remote_usbhc_bind_address(device_t *device, void *iface,
+void remote_usbhc_bind_address(ddf_fun_t *fun, void *iface,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -189,10 +190,10 @@
 	devman_handle_t handle = (devman_handle_t) DEV_IPC_GET_ARG2(*call);
 
-	int rc = usb_iface->bind_address(device, address, handle);
+	int rc = usb_iface->bind_address(fun, address, handle);
 
 	async_answer_0(callid, rc);
 }
 
-void remote_usbhc_release_address(device_t *device, void *iface,
+void remote_usbhc_release_address(ddf_fun_t *fun, void *iface,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -206,5 +207,5 @@
 	usb_address_t address = (usb_address_t) DEV_IPC_GET_ARG1(*call);
 
-	int rc = usb_iface->release_address(device, address);
+	int rc = usb_iface->release_address(fun, address);
 
 	async_answer_0(callid, rc);
@@ -212,5 +213,5 @@
 
 
-static void callback_out(device_t *device,
+static void callback_out(ddf_fun_t *fun,
     int outcome, void *arg)
 {
@@ -222,5 +223,5 @@
 }
 
-static void callback_in(device_t *device,
+static void callback_in(ddf_fun_t *fun,
     int outcome, size_t actual_size, void *arg)
 {
@@ -255,5 +256,5 @@
  * @param transfer_func Transfer function (might be NULL).
  */
-static void remote_usbhc_out_transfer(device_t *device,
+static void remote_usbhc_out_transfer(ddf_fun_t *fun,
     ipc_callid_t callid, ipc_call_t *call,
     usbhc_iface_transfer_out_t transfer_func)
@@ -294,5 +295,5 @@
 	trans->size = len;
 
-	rc = transfer_func(device, target, max_packet_size,
+	rc = transfer_func(fun, target, max_packet_size,
 	    buffer, len,
 	    callback_out, trans);
@@ -311,5 +312,5 @@
  * @param transfer_func Transfer function (might be NULL).
  */
-static void remote_usbhc_in_transfer(device_t *device,
+static void remote_usbhc_in_transfer(ddf_fun_t *fun,
     ipc_callid_t callid, ipc_call_t *call,
     usbhc_iface_transfer_in_t transfer_func)
@@ -342,5 +343,5 @@
 	trans->size = len;
 
-	int rc = transfer_func(device, target, max_packet_size,
+	int rc = transfer_func(fun, target, max_packet_size,
 	    trans->buffer, len,
 	    callback_in, trans);
@@ -352,5 +353,5 @@
 }
 
-void remote_usbhc_interrupt_out(device_t *device, void *iface,
+void remote_usbhc_interrupt_out(ddf_fun_t *fun, void *iface,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -358,9 +359,9 @@
 	assert(usb_iface != NULL);
 
-	return remote_usbhc_out_transfer(device, callid, call,
+	return remote_usbhc_out_transfer(fun, callid, call,
 	    usb_iface->interrupt_out);
 }
 
-void remote_usbhc_interrupt_in(device_t *device, void *iface,
+void remote_usbhc_interrupt_in(ddf_fun_t *fun, void *iface,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -368,9 +369,9 @@
 	assert(usb_iface != NULL);
 
-	return remote_usbhc_in_transfer(device, callid, call,
+	return remote_usbhc_in_transfer(fun, callid, call,
 	    usb_iface->interrupt_in);
 }
 
-void remote_usbhc_bulk_out(device_t *device, void *iface,
+void remote_usbhc_bulk_out(ddf_fun_t *fun, void *iface,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -378,9 +379,9 @@
 	assert(usb_iface != NULL);
 
-	return remote_usbhc_out_transfer(device, callid, call,
+	return remote_usbhc_out_transfer(fun, callid, call,
 	    usb_iface->bulk_out);
 }
 
-void remote_usbhc_bulk_in(device_t *device, void *iface,
+void remote_usbhc_bulk_in(ddf_fun_t *fun, void *iface,
     ipc_callid_t callid, ipc_call_t *call)
 {
@@ -388,9 +389,9 @@
 	assert(usb_iface != NULL);
 
-	return remote_usbhc_in_transfer(device, callid, call,
+	return remote_usbhc_in_transfer(fun, callid, call,
 	    usb_iface->bulk_in);
 }
 
-void remote_usbhc_control_write(device_t *device, void *iface,
+void remote_usbhc_control_write(ddf_fun_t *fun, void *iface,
 ipc_callid_t callid, ipc_call_t *call)
 {
@@ -444,5 +445,5 @@
 	trans->size = data_buffer_len;
 
-	rc = usb_iface->control_write(device, target, max_packet_size,
+	rc = usb_iface->control_write(fun, target, max_packet_size,
 	    setup_packet, setup_packet_len,
 	    data_buffer, data_buffer_len,
@@ -456,5 +457,5 @@
 
 
-void remote_usbhc_control_read(device_t *device, void *iface,
+void remote_usbhc_control_read(ddf_fun_t *fun, void *iface,
 ipc_callid_t callid, ipc_call_t *call)
 {
@@ -509,5 +510,5 @@
 	}
 
-	rc = usb_iface->control_read(device, target, max_packet_size,
+	rc = usb_iface->control_read(fun, target, max_packet_size,
 	    setup_packet, setup_packet_len,
 	    trans->buffer, trans->size,