Index: uspace/drv/usbhid/generic/hiddev.c
===================================================================
--- uspace/drv/usbhid/generic/hiddev.c	(revision 6bbbcabe6ed64f8953201236527aadafb81ad325)
+++ uspace/drv/usbhid/generic/hiddev.c	(revision 0d59d0e99709ef15e7ba51b20f1f96a86e8c7a45)
@@ -99,5 +99,5 @@
 	usb_hid_dev_t *hid_dev = (usb_hid_dev_t *)fun->driver_data;
 	
-	usb_log_debug2("hid_dev: %p, Max input report size (%d).\n",
+	usb_log_debug2("hid_dev: %p, Max input report size (%zu).\n",
 	    hid_dev, hid_dev->max_input_report_size);
 	
@@ -226,5 +226,5 @@
 	}
 	
-	usb_log_debug("HID function created. Handle: %d\n", fun->handle);
+	usb_log_debug("HID function created. Handle: %" PRIun "\n", fun->handle);
 	
 	return EOK;
Index: uspace/drv/usbhid/kbd/kbddev.c
===================================================================
--- uspace/drv/usbhid/kbd/kbddev.c	(revision 6bbbcabe6ed64f8953201236527aadafb81ad325)
+++ uspace/drv/usbhid/kbd/kbddev.c	(revision 0d59d0e99709ef15e7ba51b20f1f96a86e8c7a45)
@@ -798,6 +798,6 @@
 	}
 	
-	usb_log_debug("%s function created. Handle: %d\n", HID_KBD_FUN_NAME,
-	    fun->handle);
+	usb_log_debug("%s function created. Handle: %" PRIun "\n",
+	    HID_KBD_FUN_NAME, fun->handle);
 	
 	usb_log_debug("Adding DDF function to class %s...\n", 
Index: uspace/drv/usbhid/multimedia/multimedia.c
===================================================================
--- uspace/drv/usbhid/multimedia/multimedia.c	(revision 6bbbcabe6ed64f8953201236527aadafb81ad325)
+++ uspace/drv/usbhid/multimedia/multimedia.c	(revision 0d59d0e99709ef15e7ba51b20f1f96a86e8c7a45)
@@ -211,5 +211,6 @@
 	}
 	
-	usb_log_debug("%s function created. Handle: %d\n", NAME, fun->handle);
+	usb_log_debug("%s function created (jandle: %" PRIun ").\n",
+	    NAME, fun->handle);
 	
 	rc = ddf_fun_add_to_class(fun, "keyboard");
Index: uspace/lib/drv/generic/driver.c
===================================================================
--- uspace/lib/drv/generic/driver.c	(revision 6bbbcabe6ed64f8953201236527aadafb81ad325)
+++ uspace/lib/drv/generic/driver.c	(revision 0d59d0e99709ef15e7ba51b20f1f96a86e8c7a45)
@@ -405,5 +405,6 @@
 				/* The interface has not such method */
 				printf("%s: driver_connection_gen error - "
-				    "invalid interface method (%d).\n",
+				    "invalid interface method "
+				    "(index %" PRIun ").\n",
 				    driver->name, iface_method_idx);
 				async_answer_0(callid, ENOTSUP);