Index: uspace/drv/bus/usb/usbhub/port.c
===================================================================
--- uspace/drv/bus/usb/usbhub/port.c	(revision 747a1e7105749fffdce7496f06dd8b00b733a1e0)
+++ uspace/drv/bus/usb/usbhub/port.c	(revision e231d26a7d9c80c20331bc2f5d2474498fb948ec)
@@ -224,5 +224,5 @@
 			if (rc != EOK) {
 				usb_log_error(
-				    "Failed to set port %d power after OC:"
+				    "Failed to set port %zu power after OC:"
 				    " %s.\n", port->port_number, str_error(rc));
 			}
@@ -306,5 +306,5 @@
 	if (rc != EOK) {
 		usb_log_error(
-		    "Failed to clear port %d reset change feature: %s.\n",
+		    "Failed to clear port %zu reset change feature: %s.\n",
 		    port->port_number, str_error(rc));
 	}
Index: uspace/drv/bus/usb/usbhub/usbhub.c
===================================================================
--- uspace/drv/bus/usb/usbhub/usbhub.c	(revision 747a1e7105749fffdce7496f06dd8b00b733a1e0)
+++ uspace/drv/bus/usb/usbhub/usbhub.c	(revision e231d26a7d9c80c20331bc2f5d2474498fb948ec)
@@ -307,5 +307,5 @@
 	const size_t configuration_count =
 	    usb_device->descriptors.device.configuration_count;
-	usb_log_debug("Hub has %d configurations.\n", configuration_count);
+	usb_log_debug("Hub has %zu configurations.\n", configuration_count);
 
 	if (configuration_count < 1) {
@@ -358,5 +358,5 @@
 				usb_log_warning(
 				    "HUB OVER-CURRENT GONE: Cannot power on "
-				    "port %d;  %s\n",
+				    "port %zu;  %s\n",
 				    port, str_error(opResult));
 			}